JPH04150994A - Ionized water supply apparatus - Google Patents

Ionized water supply apparatus

Info

Publication number
JPH04150994A
JPH04150994A JP2273716A JP27371690A JPH04150994A JP H04150994 A JPH04150994 A JP H04150994A JP 2273716 A JP2273716 A JP 2273716A JP 27371690 A JP27371690 A JP 27371690A JP H04150994 A JPH04150994 A JP H04150994A
Authority
JP
Japan
Prior art keywords
water
ionized water
acidic
acidic ionized
adsorbent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2273716A
Other languages
Japanese (ja)
Other versions
JP2793352B2 (en
Inventor
Kenichi Matsui
健一 松井
Takeshi Murakami
武 村上
Tadashi Yoshimura
正 吉村
Akira Horie
堀江 旭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP2273716A priority Critical patent/JP2793352B2/en
Publication of JPH04150994A publication Critical patent/JPH04150994A/en
Application granted granted Critical
Publication of JP2793352B2 publication Critical patent/JP2793352B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Water Treatment By Electricity Or Magnetism (AREA)
  • Water Treatment By Sorption (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

PURPOSE:To adsorb and remove Cl2 and HClO by providing an adsorbent to an acidic ionized water flow path to which the acidic ionized water in the ionized water supplied from an ionized water forming apparatus flows. CONSTITUTION:Tap water or hot water obtained by heating tap water is supplied to an ionized water forming apparatus 1 and electrolytic action and electroosmotic action are applied to said water to prepare alkali ionized water and acidic ionized water. Whereupon, chlorine Cl<-> mixed with the tap water or the hot water obtained by heating the tap water for the purpose of disinfection collectively gathered to an anode where acidic ionized water is formed to become HClO on the anode side and HClO is supplied to an acidic ionized water flow path 2 along with acidic ionized water. Since an adsorbent 3 is provided in the acidic ionized water flow path 2, Cl2 and HClO are adsorbed and removed by the adsorbent 3. Since chlorine Cl<-> mixed for the purpose of disinfection is collectively gathered to the anode to become HClO and flows to the acidic ionized water passage 15b together with acidic ionized water, the absolute amount of chlorine is reduced on the side of alkali ionized water.

Description

【発明の詳細な説明】 [産業上の利用分野コ 本発明は、イオン水を供給する装置において水道水に含
まれる塩素を除去するための装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for removing chlorine contained in tap water in an apparatus for supplying ionized water.

[従来の技術] 従来から実開昭51−156046号公報等により、水
道水乃至水道水を加温した温水に電解作用及び電気浸透
作用を与えてアルカリイオン水及び酸性イオン水を調整
製造するイオン水生成装置が知られている。
[Prior Art] Conventionally, as disclosed in Japanese Utility Model Application Publication No. 51-156046, etc., an ion method has been proposed for adjusting and producing alkaline ionized water and acidic ionized water by applying electrolytic action and electroosmotic action to tap water or hot water obtained by heating tap water. Water generating devices are known.

[発明が解決しようとする課題] ところが、上記の従来例にあっては、水道水には消毒の
ために塩素が混入してあり、この塩素が最終使用段階ま
で含まれた状態となっているので快適な使用ができなか
っな。
[Problem to be solved by the invention] However, in the above conventional example, tap water is mixed with chlorine for disinfection, and this chlorine remains in the water until the final use stage. So I couldn't use it comfortably.

一方活性炭等の吸着剤に水道水を通すことで、塩素を除
去することが考えられているが、水道水中には塩素がC
12の状態と01−の状態とで存在し、吸着剤ではCI
2しか除去できず、CI−は除去できないものである。
On the other hand, it has been considered that chlorine can be removed by passing tap water through an adsorbent such as activated carbon, but tap water contains chlorine and carbon dioxide.
It exists in the 12 state and the 01- state, and in the adsorbent, CI
Only 2 can be removed, and CI- cannot be removed.

本発明は上記の点に鑑みて発明したものであって、その
目的とするところは、塩素を確実に除去できるイオン水
供給装置を提供するにある。
The present invention was invented in view of the above points, and an object of the present invention is to provide an ionized water supply device that can reliably remove chlorine.

[課題を解決するための手段] 本発明のイオン水供給装置は、水道水乃至水道水を加温
した温水に電解作用及び電気浸透作用を与えてアルカリ
イオン水及び酸性イオン水を調整製造するイオン水生成
装置1を設け、イオン水生成装置1から供給されるイオ
ン水のうち酸性イオン水が流れる酸性イオン水流路2に
吸着*l]3を設けて成ることを特徴とするものであっ
て、このような構成を採用することで、上記した従来例
の問題点を解決して本発明の目的を達成したものである
[Means for Solving the Problems] The ionized water supply device of the present invention provides an ionized water supply device that adjusts and produces alkaline ionized water and acidic ionized water by applying an electrolytic action and an electroosmotic action to tap water or hot water obtained by heating tap water. A water generating device 1 is provided, and an adsorption *l] 3 is provided in an acidic ionized water channel 2 through which acidic ionized water among the ionized water supplied from the ionized water generating device 1 flows, By adopting such a configuration, the problems of the conventional example described above are solved and the object of the present invention is achieved.

[作用] 水道水乃至水道水を加温した温水をイオン水生成装置1
に供給して電解作用及び電気浸透作用を与えてアルカリ
イオン水及び酸性イオン水を調整製造すると、酸性イオ
ン水が生成される側の陽極側において水道水乃至水道水
を加温した温水に含まれるCI−が集まって陽極側にお
いてHCl0となって酸性イオン水と共に酸性イオン水
流路2に供給され、この酸性イオン水流路2に設けた吸
着剤3にC12及びHCl0が吸着除去されるものであ
る。
[Function] Tap water or hot water obtained by heating tap water is supplied to the ionized water generator 1.
When alkaline ionized water and acidic ionized water are adjusted and manufactured by applying electrolytic action and electroosmotic action to water, the water is contained in tap water or hot water obtained by heating tap water at the anode side, which is the side where acidic ionized water is generated. CI- gathers and becomes HCl0 on the anode side, which is supplied to the acidic ion water channel 2 together with acidic ion water, and C12 and HCl0 are adsorbed and removed by the adsorbent 3 provided in the acidic ion water channel 2.

[実施例] 以下本発明を添付図面に示す実施例に基づいて詳述する
[Examples] The present invention will be described in detail below based on examples shown in the accompanying drawings.

第1図において、4は水道水を供給するための水道管で
あり、5は給湯管であり、それぞれ先端にバルブ付き蛇
口6.7が設けである。ここで給湯管5は水道管に直結
接続した温水器(図示せず)に接続してあって溢水器で
加温した湯水が給湯管5のバルブ付き蛇ロアから供給さ
れるようになっている。水道管4の先端のバルブ付き蛇
口6には給水管路8の一端部がいわゆる「歌語」と称さ
れる結合手段9により着脱自在に結合しである。
In FIG. 1, 4 is a water pipe for supplying tap water, and 5 is a hot water supply pipe, each of which is provided with a faucet 6.7 with a valve at its tip. Here, the hot water pipe 5 is connected to a water heater (not shown) that is directly connected to the water pipe, and hot water heated by the overflow device is supplied from the lower snake with a valve of the hot water pipe 5. . One end of a water supply pipe 8 is removably connected to a faucet 6 with a valve at the tip of the water pipe 4 by means of a connecting means 9 called a so-called "song".

また、給湯管5の先端のバルブ付き蛇ロアには給湯管路
10の一端部がいわゆる「歌語」と称される結合手段9
により着脱自在に結合しである。給水配管8と給湯配管
10の途中間及び先端同士はそれぞれ第1、第2の三方
弁11.12により接続しである。第2の三方弁12の
先端には供給管13が接続してあり、供給管13の先端
がイオン水生成装置1に接続しである。イオン水生成装
置1は電気分解槽1aと切換手段14とで楕成しである
。上記した電気分解槽1aは、例えば多孔質の隔壁にて
陰極室と陽極室とに仕切り、両室に配置した電極に電圧
を印加して、両室中の湯水に電解作用及び電気浸透作用
を与えるようにして、陰極室においてペーハー値の高い
アルカリイオン水を生成し、そして陽極室においてベー
ハー値の低い酸性イオン水を生成するように構成したも
のである。このような生成を行う装置は、例えば実開昭
51−156046号公報等において周知なものである
In addition, one end of the hot water supply pipe 10 is connected to a connecting means 9 called a "song" at the lower end of the hot water supply pipe 5 with a valve.
It is removably connected. The water supply pipe 8 and the hot water supply pipe 10 are connected in the middle and at their ends by first and second three-way valves 11 and 12, respectively. A supply pipe 13 is connected to the tip of the second three-way valve 12, and the tip of the supply pipe 13 is connected to the ionized water generator 1. The ionized water generating device 1 has an oval configuration including an electrolysis tank 1a and a switching means 14. The electrolytic cell 1a described above is divided into a cathode chamber and an anode chamber by, for example, a porous partition wall, and a voltage is applied to electrodes placed in both chambers to cause electrolytic and electroosmotic effects to the hot water in both chambers. In this way, alkaline ionized water with a high pH value is generated in the cathode chamber, and acidic ionized water with a low pH value is generated in the anode chamber. A device that performs such generation is well known, for example, in Japanese Utility Model Application Publication No. 51-156046.

このように調整されたアルカリイオン水及び酸性イオン
水の給水経路は第1図に示すようになっている。すなわ
ち、電気分解槽1aに一端部を接続されて電気分解槽1
aで生成されたアルカリイオン水を供給するアルカリイ
オン水水路15a及び電気分解槽1aに一端部を接続さ
れて電気分解槽1aで生成された酸性イオン水を供給す
る酸性イオン水水路15bが各々流路切換弁を内蔵した
切換手段14に連通され、切換手段14からイオン水流
路16が導出されており、イオン水流路16は先端に吐
水部20が設けであるが、更にこのイオン水流路16の
途中が並列流路に別れていて一方が酸性イオン水流路2
となり、他方がアルカリイオン水流路17となっている
。そして、酸性イオン水流路2及びアルカリイオン水流
路17にはそれぞれ開閉弁18.19が設けである。酸
性イオン水流路2の開閉弁18よりも水下側には吸着剤
内装部が設けてあって、この吸着剤内装部に吸着剤3が
設けである。吸着剤3としては例えば活性炭のようなも
のが用いられるが、カートリッジ式としておくことで取
付け、取外しが簡単に行えるようにしである。
The water supply routes of alkaline ion water and acidic ion water adjusted in this way are shown in FIG. That is, one end of the electrolytic cell 1a is connected to the electrolytic cell 1a.
An alkaline ionized water channel 15a that supplies the alkaline ionized water produced in step a, and an acidic ionized water channel 15b that is connected at one end to the electrolysis tank 1a and supplies the acidic ionized water produced in the electrolysis tank 1a, each flow. It communicates with a switching means 14 having a built-in path switching valve, and an ionized water flow path 16 is led out from the switching means 14.The ionized water flow path 16 is provided with a water spouting part 20 at its tip. The middle part is divided into parallel flow paths, and one side is acidic ion water flow path 2.
The other side is the alkaline ionized water flow path 17. The acidic ionized water channel 2 and the alkaline ionized water channel 17 are each provided with on-off valves 18 and 19. An adsorbent internal portion is provided below the on-off valve 18 of the acidic ionized water channel 2, and the adsorbent 3 is provided in this adsorbent internal portion. For example, activated carbon is used as the adsorbent 3, and the adsorbent 3 is of a cartridge type so that it can be easily installed and removed.

しかして、第1、第2の三方弁11.12を操作して、
水道水のみ、あるいは、水道水を加温した温水のみ、あ
るいは水道水と温水との混合水をイオン水生成装置1に
供給し、イオン水生成装置1に供給した水道水乃至水道
水を加温した温水をイオン水生成製N1において電解作
用及び電気浸透作用を与えてアルカリイオン水及び酸性
イオン水を調整製造し、これらアルカリイオン水及び酸
性イオン水を切換手段14側に送り、切換手段14の切
換えによりアルカリイオン水又は酸性イオン水がイオン
水流路16に送られる。そして、開閉弁18.19を操
作して切換手段14により酸性イオン水がイオン水流路
16に送られる場合には開閉弁18が開となり、開閉弁
19が閉となって、酸性イオン水が酸性イオン水流路2
を通りイオン水流路16の先端の吐水部20に流れて吐
出される。また、切換手段14によりアルカリイオン水
がイオン水流路16に送られる場合には開閉弁18が閉
となり、llf!閉弁19が開となって、アルカリイオ
ン水がアルカリイオン水流路17を通りイオン水流路1
6の先端の吐水部20に流れて吐出される。ところで、
切換手段14の切換えでイオン流路16側に供給されな
い方の酸性イオン水又はアルカリイオン水は排水管22
により排水される。図中23は電解槽1aに設けた水抜
き管である。
Then, by operating the first and second three-way valves 11 and 12,
Supply only tap water, only hot water obtained by heating tap water, or a mixture of tap water and hot water to the ionized water generator 1, and heat the tap water or tap water supplied to the ionized water generator 1. The heated water is subjected to electrolytic action and electroosmotic action in the ionized water production N1 to adjust and produce alkaline ionized water and acidic ionized water, and these alkaline ionized water and acidic ionized water are sent to the switching means 14 side. Alkaline ion water or acidic ion water is sent to the ion water channel 16 by switching. When the on-off valves 18 and 19 are operated and the switching means 14 sends acidic ionized water to the ionized water flow path 16, the on-off valve 18 is opened and the on-off valve 19 is closed, so that the acidic ionized water becomes acidic. Ionized water flow path 2
The water passes through the ionized water channel 16 and flows to the water spouting section 20 at the tip of the ionized water channel 16, where it is discharged. Further, when alkaline ionized water is sent to the ionized water flow path 16 by the switching means 14, the on-off valve 18 is closed, and llf! The closing valve 19 is opened, and alkaline ionized water passes through the alkaline ionized water flow path 17 and enters the ionized water flow path 1.
The water flows to the water spouting part 20 at the tip of 6 and is discharged. by the way,
Acidic ionized water or alkaline ionized water that is not supplied to the ion flow path 16 side by switching the switching means 14 is drained from the drain pipe 22.
The water is drained by the water. In the figure, 23 is a drain pipe provided in the electrolytic cell 1a.

ここで、上記のように水道水乃至水道水を加温した温水
をイオン水生成装置1に供給して電解作用及び電気浸透
作用を与えてアルカリイオン水及び酸性イオン水を調整
製造すると、酸性イオン水が生成される側の陽極側にお
いて水道水乃至水道水を加温した温水に消毒のために混
入された塩素のCI−が集中して凰まって陽極側におい
てHCJOとなって酸性イオン水と共に酸性イオン水流
路2に供給されることなる。しかして、酸性イオン水流
路2にはすでに述べたように吸着剤3が設けであるので
、吸着剤3にC1,及びHCl0が吸着除去されること
になり、吐水部20から吐水される酸性イオン水には塩
素が除去された状態となっている。一方、アルカリイオ
ン水はイオン水生成装置1により電解作用及び電気浸透
作用を与えてアルカリ水及び酸性イオン水を調整製造す
る際に、上記のように水道水乃至水道水を加温した温水
に消毒のために混入された塩素のC1−が陽極側に集中
して集まってHCl0となって酸性イオン水と一緒に酸
性イオン水水路15b側に流れるため、アルカリイオン
水側には塩素の絶対量が少なくなり、塩素の匂い等の障
害が極力少なくできることになる。
Here, when tap water or hot water obtained by heating tap water is supplied to the ionized water generating device 1 and subjected to electrolytic action and electroosmotic action to adjust and produce alkaline ionized water and acidic ionized water, acid ion On the anode side where water is generated, the CI- of chlorine mixed into tap water or hot water obtained by heating tap water for disinfection concentrates and decreases, becoming HCJO on the anode side and together with acidic ionized water. The acidic ion water is supplied to the flow path 2. Since the acidic ion water flow path 2 is provided with the adsorbent 3 as described above, C1 and HCl0 are adsorbed and removed by the adsorbent 3, and the acid ions discharged from the water spouting section 20 are removed. Chlorine has been removed from the water. On the other hand, alkaline ionized water is subjected to electrolytic action and electroosmotic action by the ionized water generator 1 to prepare and produce alkaline water and acidic ionized water. The chlorine C1- mixed in for this reason concentrates on the anode side, becomes HCl0, and flows to the acidic ionized water channel 15b side together with the acidic ionized water, so the absolute amount of chlorine is on the alkaline ionized water side. This means that problems such as the smell of chlorine can be minimized.

なお、第2図に示すように、アルカリイオン水氷路15
a乃至酸性イオン水氷路15bの途中には必要に応じて
ミネラル付与手段21を設けてもよい。ミネラル付与手
段21は麦はん石のような岩石を装填した檜であって、
この檜を通過させることでアルカリイオン水または酸性
イオン水にミネラルを付与するようになっている。
In addition, as shown in FIG.
A mineral imparting means 21 may be provided in the middle of the acid ion water ice passages 15a to 15b, if necessary. The mineral imparting means 21 is a cypress filled with rocks such as barley stone,
Minerals are added to alkaline ionized water or acidic ionized water by passing it through this cypress.

ところで、上記吐出口20から吐出するアルカリイオン
水や酸性イオン水は洗顔、洗髪、飲料、シャワー用、風
呂用等として利用されるが、この場合、吐出口20から
アルカリイオン水を吐出することで、皮膚の脂肪、分泌
物を乳化させ、洗い流したあとは皮膚は滑らかになり、
清潔になり、いわゆる石鹸と同じ効果を得るものであり
、清浄化を促進するものである。そして切換手段14の
切換にて吐出口20から酸性イオン水を吐出して、殺菌
、細菌感染の予防、皮膚を引き締めるアストリンゼント
効果を得るものであり、美肌や健康面においても向上さ
せるものである。このように最後に酸性イオン水の洗浄
を行うように切換ることで、本来酸性である皮膚を酸性
に維持できるのである。
Incidentally, the alkaline ion water and acidic ion water discharged from the discharge port 20 are used for face washing, hair washing, drinking, showering, bathing, etc. In this case, by discharging the alkaline ion water from the discharge port 20, , emulsifies skin fat and secretions, leaving the skin smooth after washing away.
It cleanses and has the same effect as so-called soap, and promotes cleaning. By switching the switching means 14, acidic ion water is discharged from the discharge port 20 to obtain sterilization, prevention of bacterial infection, and astringent effect of tightening the skin, thereby improving skin beauty and health. By switching to washing with acidic ionized water at the end, the skin, which is naturally acidic, can be maintained in an acidic state.

[発明の効果] 以上要するに本発明は、水道水乃至水道水を加温した温
水に電解作用及び電気浸透作用を与えてアルカリイオン
水及び酸性イオン水を調整製造するイオン水生成装置を
設け、イオン水生成装置から供給されるイオン水のうち
酸性イオン水が流れる酸性イオン水流路に吸着剤を設け
であるので、水道水乃至水道水を加温した温水をイオン
水生成装置に供給して電解作用及び電気浸透作用を与え
てアルカリイオン水及び酸性イオン水を調整製造するこ
とで、酸性イオン水が生成される側の陽極側において水
道水乃至水道水を加温した温水に含まれるCI−が集ま
って陽極側においてHCfOとなって酸性イオン水と共
に酸性イオン水流路に供給され、この酸性イオン水流路
に設けた吸着剤によりC1,及びHCl0を吸着除去で
きるものであって、酸性イオン水から塩素を効率良(除
去できるものであり、一方、アルカリイオン水側におい
ては、イオン水生成装置における電解作用時にCl−が
集まって陽極側において)(CfOとなって酸性イオン
水と共に酸性イオン水流路側に供給されるためアルカリ
イオン水側における塩素の絶対量がきわめて少なくなる
ものである。
[Effects of the Invention] In summary, the present invention provides an ionized water generation device that adjusts and produces alkaline ionized water and acidic ionized water by applying electrolytic action and electroosmotic action to tap water or hot water obtained by heating tap water. Of the ionized water supplied from the water generator, an adsorbent is installed in the acidic ionized water flow path, so tap water or hot water obtained by heating tap water is supplied to the ionized water generator for electrolysis. By adjusting and manufacturing alkaline ionized water and acidic ionized water by giving electroosmotic action, CI- contained in tap water or hot water obtained by heating tap water gathers on the anode side where acidic ionized water is generated. It becomes HCfO on the anode side and is supplied to the acidic ionized water channel together with the acidic ionized water, and C1 and HCl0 can be adsorbed and removed by the adsorbent provided in the acidic ionized water channel. Efficient (can be removed) On the other hand, on the alkaline ionized water side, Cl- gathers during electrolysis in the ionized water generator and becomes CfO on the anode side and is supplied to the acidic ionized water flow path side along with acidic ionized water. Therefore, the absolute amount of chlorine on the alkaline ionized water side is extremely small.

【図面の簡単な説明】[Brief explanation of the drawing]

第1t!lは本発明の一実施例の給水系統図、第2図は
本発明の他の実施例の給水系統図であり、1はイオン水
生成装置、2は酸性イオン水流路、3軸吸着剤である。 代理人 弁理士 石 1)長 七
1st t! 1 is a water supply system diagram of one embodiment of the present invention, and FIG. 2 is a water supply system diagram of another embodiment of the present invention, where 1 is an ionized water generator, 2 is an acidic ionized water flow path, and a triaxial adsorbent. be. Agent Patent Attorney Ishi 1) Choshichi

Claims (1)

【特許請求の範囲】[Claims] (1)水道水乃至水道水を加温した温水に電解作用及び
電気浸透作用を与えてアルカリイオン水及び酸性イオン
水を調整製造するイオン水生成装置を設け、イオン水生
成装置から供給されるイオン水のうち酸性イオン水が流
れる酸性イオン水流路に吸着剤を設けて成ることを特徴
とするイオン水供給装置。
(1) An ionized water generation device is provided that adjusts and produces alkaline ionized water and acidic ionized water by applying electrolytic and electroosmotic effects to tap water or hot water obtained by heating tap water, and ions supplied from the ionized water generation device are installed. An ionized water supply device characterized in that an adsorbent is provided in an acidic ionized water channel through which acidic ionized water flows.
JP2273716A 1990-10-11 1990-10-11 Ion water supply device Expired - Fee Related JP2793352B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2273716A JP2793352B2 (en) 1990-10-11 1990-10-11 Ion water supply device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2273716A JP2793352B2 (en) 1990-10-11 1990-10-11 Ion water supply device

Publications (2)

Publication Number Publication Date
JPH04150994A true JPH04150994A (en) 1992-05-25
JP2793352B2 JP2793352B2 (en) 1998-09-03

Family

ID=17531567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2273716A Expired - Fee Related JP2793352B2 (en) 1990-10-11 1990-10-11 Ion water supply device

Country Status (1)

Country Link
JP (1) JP2793352B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04326985A (en) * 1991-04-25 1992-11-16 O D S:Kk Water purifier

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5847991U (en) * 1981-09-25 1983-03-31 ホーチキ株式会社 signal transmission equipment

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5847991U (en) * 1981-09-25 1983-03-31 ホーチキ株式会社 signal transmission equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04326985A (en) * 1991-04-25 1992-11-16 O D S:Kk Water purifier

Also Published As

Publication number Publication date
JP2793352B2 (en) 1998-09-03

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