JPS6294187U - - Google Patents

Info

Publication number: JPS6294187U
Authority: JP; Japan
Prior art keywords: expansion; piece; wing piece; rotating cam; opposing
Prior art date: 1985-12-02
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

JP18582185U

Other languages

English (en)

Japanese (ja)

Other versions

JPH0227031Y2 (2

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.)

1985-12-02

Filing date

1985-12-02

Publication date

1987-06-16

1985-12-02 Application filed filed Critical

1985-12-02 Priority to JP1985185821U priority Critical patent/JPH0227031Y2/ja

1987-06-16 Publication of JPS6294187U publication Critical patent/JPS6294187U/ja

1990-07-23 Application granted granted Critical

1990-07-23 Publication of JPH0227031Y2 publication Critical patent/JPH0227031Y2/ja

Status Expired legal-status Critical Current

Links

238000009412 basement excavation Methods 0.000 claims 2
230000008602 contraction Effects 0.000 claims 1

Landscapes

Earth Drilling (AREA)

JP1985185821U 1985-12-02 1985-12-02 Expired JPH0227031Y2 (2)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
JP1985185821U JPH0227031Y2 (2)	1985-12-02	1985-12-02

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP1985185821U JPH0227031Y2 (2)	1985-12-02	1985-12-02

Publications (2)

Publication Number	Publication Date
JPS6294187U true JPS6294187U (2)	1987-06-16
JPH0227031Y2 JPH0227031Y2 (2)	1990-07-23

Family

ID=31134808

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP1985185821U Expired JPH0227031Y2 (2)	1985-12-02	1985-12-02

Country Status (1)

Country	Link
JP (1)	JPH0227031Y2 (2)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2006200285A (ja) *	2005-01-24	2006-08-03	Sanwa Kizai Co Ltd	掘削作業ロッドの拡大ヘッド

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS55159285U (2) *	1979-05-02	1980-11-15
JPS5817835U (ja) *	1981-07-27	1983-02-03	象印マホービン株式会社	コ−ヒ−メ−カ−のドリップパイプ

1985
- 1985-12-02 JP JP1985185821U patent/JPH0227031Y2/ja not_active Expired

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS55159285U (2) *	1979-05-02	1980-11-15
JPS5817835U (ja) *	1981-07-27	1983-02-03	象印マホービン株式会社	コ−ヒ−メ−カ−のドリップパイプ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2006200285A (ja) *	2005-01-24	2006-08-03	Sanwa Kizai Co Ltd	掘削作業ロッドの拡大ヘッド

Also Published As

Publication number	Publication date
JPH0227031Y2 (2)	1990-07-23

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