JPH0376045U - - Google Patents

Info

Publication number
JPH0376045U
JPH0376045U JP13737789U JP13737789U JPH0376045U JP H0376045 U JPH0376045 U JP H0376045U JP 13737789 U JP13737789 U JP 13737789U JP 13737789 U JP13737789 U JP 13737789U JP H0376045 U JPH0376045 U JP H0376045U
Authority
JP
Japan
Prior art keywords
manhole
support frame
opening
end side
vertical position
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
JP13737789U
Other languages
English (en)
Japanese (ja)
Other versions
JPH077390Y2 (ja
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 filed Critical
Priority to JP1989137377U priority Critical patent/JPH077390Y2/ja
Publication of JPH0376045U publication Critical patent/JPH0376045U/ja
Application granted granted Critical
Publication of JPH077390Y2 publication Critical patent/JPH077390Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Ladders (AREA)
JP1989137377U 1989-11-28 1989-11-28 マンホール用可搬式タラップ Expired - Lifetime JPH077390Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989137377U JPH077390Y2 (ja) 1989-11-28 1989-11-28 マンホール用可搬式タラップ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989137377U JPH077390Y2 (ja) 1989-11-28 1989-11-28 マンホール用可搬式タラップ

Publications (2)

Publication Number Publication Date
JPH0376045U true JPH0376045U (US06818201-20041116-C00086.png) 1991-07-30
JPH077390Y2 JPH077390Y2 (ja) 1995-02-22

Family

ID=31684537

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989137377U Expired - Lifetime JPH077390Y2 (ja) 1989-11-28 1989-11-28 マンホール用可搬式タラップ

Country Status (1)

Country Link
JP (1) JPH077390Y2 (US06818201-20041116-C00086.png)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101262969B1 (ko) 2013-03-06 2013-05-09 창전이앤시 주식회사 터널 유지관리용 환기구의 접이식 안전 사다리

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5299660U (US06818201-20041116-C00086.png) * 1975-08-15 1977-07-28
JPS624590U (US06818201-20041116-C00086.png) * 1985-06-25 1987-01-12
JPS63130544U (US06818201-20041116-C00086.png) * 1987-02-16 1988-08-26

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5299660U (US06818201-20041116-C00086.png) * 1975-08-15 1977-07-28
JPS624590U (US06818201-20041116-C00086.png) * 1985-06-25 1987-01-12
JPS63130544U (US06818201-20041116-C00086.png) * 1987-02-16 1988-08-26

Also Published As

Publication number Publication date
JPH077390Y2 (ja) 1995-02-22

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