FR336857A
(en )
1904-03-19
Apparatus for sterilizing water by means of an electric current
FR342597A
(en )
1904-09-12
Device for limiting the intensity of electric current
CH33479A
(en )
1905-12-15
Water tap in an installation for sterilizing water by means of an electric current
FR3532E
(en )
1904-12-03
Apparatus for water sterilization
FR331668A
(en )
1903-09-25
Apparatus for water sterilization
FR344893A
(en )
1904-11-15
Electric current limiting device
FR332366A
(en )
1903-10-27
Apparatus for the distillation of water
CH27987A
(en )
1904-03-15
Apparatus for raising water by means of compressed air
FR409901A
(en )
1910-05-06
Method and apparatus for purifying liquids by means of an electric current
FR365584A
(en )
1906-09-11
Device for electric water heating
FR5577E
(en )
1906-05-11
Method for working metals by means of an alternating current electric arc
FR357880A
(en )
1906-01-18
Method for working metals by means of an alternating current electric arc
CH30515A
(en )
1904-12-31
Adjustment device for gradually varying the voltage of an alternating current
CH28096A
(en )
1904-03-31
Electric meter for direct current
FR383426A
(en )
1908-03-09
Electric device for water heating
FR348559A
(en )
1905-04-17
Apparatus for indicating the heating of a pad by means of an electrical alarm device
FR431061A
(en )
1911-10-31
Method of instantaneous heating of liquids by means of an electric current
FR409570A
(en )
1910-04-26
Advanced device for sterilizing water by ozonization
FR339672A
(en )
1904-06-16
Electrical apparatus for vertical shaking soundings
FR349519A
(en )
1905-06-02
Electric massage device
FR341691A
(en )
1904-08-17
Cylindrical apparatus for reproducing drawings by means of electric light
FR406881A
(en )
1910-02-14
Device for rapid heating of water
FR1909E
(en )
1903-11-07
Apparatus for sterilizing water and beverages says: "safety"
FR323609A
(en )
1903-03-10
Apparatus for translating variations in current intensity into variations in light intensity
CH21150A
(en )
1901-05-31
Device for converting alternating current into direct current