JPS57190690A - Washer for inner surface of piping - Google Patents

Washer for inner surface of piping

Info

Publication number
JPS57190690A
JPS57190690A JP56074872A JP7487281A JPS57190690A JP S57190690 A JPS57190690 A JP S57190690A JP 56074872 A JP56074872 A JP 56074872A JP 7487281 A JP7487281 A JP 7487281A JP S57190690 A JPS57190690 A JP S57190690A
Authority
JP
Japan
Prior art keywords
piping
washer
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.)
Pending
Application number
JP56074872A
Other languages
Japanese (ja)
Inventor
Shigeru Kaminaga
Tokuzou Seki
Takashi Katsuki
Yoshibumi Satou
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.)
Hitachi Service Engineering Co Ltd
Hitachi Ltd
Original Assignee
Hitachi Service Engineering Co Ltd
Hitachi 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 Hitachi Service Engineering Co Ltd, Hitachi Ltd filed Critical Hitachi Service Engineering Co Ltd
Priority to JP56074872A priority Critical patent/JPS57190690A/en
Publication of JPS57190690A publication Critical patent/JPS57190690A/en
Pending legal-status Critical Current

Links

Landscapes

  • Cleaning In General (AREA)
JP56074872A 1981-05-20 1981-05-20 Washer for inner surface of piping Pending JPS57190690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56074872A JPS57190690A (en) 1981-05-20 1981-05-20 Washer for inner surface of piping

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56074872A JPS57190690A (en) 1981-05-20 1981-05-20 Washer for inner surface of piping

Publications (1)

Publication Number Publication Date
JPS57190690A true JPS57190690A (en) 1982-11-24

Family

ID=13559854

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56074872A Pending JPS57190690A (en) 1981-05-20 1981-05-20 Washer for inner surface of piping

Country Status (1)

Country Link
JP (1) JPS57190690A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59183877A (en) * 1983-04-01 1984-10-19 株式会社東芝 Apparatus for cleaning cooling water intake and discharge pipe
JPH0199486U (en) * 1987-12-24 1989-07-04

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59183877A (en) * 1983-04-01 1984-10-19 株式会社東芝 Apparatus for cleaning cooling water intake and discharge pipe
JPH0199486U (en) * 1987-12-24 1989-07-04

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