JPH0712439Y2 - マンホール蓋の開閉装置 - Google Patents

マンホール蓋の開閉装置

Info

Publication number
JPH0712439Y2
JPH0712439Y2 JP1988056606U JP5660688U JPH0712439Y2 JP H0712439 Y2 JPH0712439 Y2 JP H0712439Y2 JP 1988056606 U JP1988056606 U JP 1988056606U JP 5660688 U JP5660688 U JP 5660688U JP H0712439 Y2 JPH0712439 Y2 JP H0712439Y2
Authority
JP
Japan
Prior art keywords
manhole
manhole cover
nozzle
closing device
vertical shaft
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.)
Expired - Lifetime
Application number
JP1988056606U
Other languages
English (en)
Japanese (ja)
Other versions
JPH01160043U (en]
Inventor
撤 中川
勝 小笠
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP1988056606U priority Critical patent/JPH0712439Y2/ja
Publication of JPH01160043U publication Critical patent/JPH01160043U/ja
Application granted granted Critical
Publication of JPH0712439Y2 publication Critical patent/JPH0712439Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

JP1988056606U 1988-04-28 1988-04-28 マンホール蓋の開閉装置 Expired - Lifetime JPH0712439Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988056606U JPH0712439Y2 (ja) 1988-04-28 1988-04-28 マンホール蓋の開閉装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988056606U JPH0712439Y2 (ja) 1988-04-28 1988-04-28 マンホール蓋の開閉装置

Publications (2)

Publication Number Publication Date
JPH01160043U JPH01160043U (en]) 1989-11-07
JPH0712439Y2 true JPH0712439Y2 (ja) 1995-03-22

Family

ID=31282477

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988056606U Expired - Lifetime JPH0712439Y2 (ja) 1988-04-28 1988-04-28 マンホール蓋の開閉装置

Country Status (1)

Country Link
JP (1) JPH0712439Y2 (en])

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56134953U (en]) * 1980-03-11 1981-10-13

Also Published As

Publication number Publication date
JPH01160043U (en]) 1989-11-07

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