JPH0312820Y2 - - Google Patents

Info

Publication number
JPH0312820Y2
JPH0312820Y2 JP6989685U JP6989685U JPH0312820Y2 JP H0312820 Y2 JPH0312820 Y2 JP H0312820Y2 JP 6989685 U JP6989685 U JP 6989685U JP 6989685 U JP6989685 U JP 6989685U JP H0312820 Y2 JPH0312820 Y2 JP H0312820Y2
Authority
JP
Japan
Prior art keywords
entrance
rod
manhole
exit
ladder
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
Application number
JP6989685U
Other languages
English (en)
Japanese (ja)
Other versions
JPS61184751U (en]
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 JP6989685U priority Critical patent/JPH0312820Y2/ja
Publication of JPS61184751U publication Critical patent/JPS61184751U/ja
Application granted granted Critical
Publication of JPH0312820Y2 publication Critical patent/JPH0312820Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Ladders (AREA)
JP6989685U 1985-05-11 1985-05-11 Expired JPH0312820Y2 (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6989685U JPH0312820Y2 (en]) 1985-05-11 1985-05-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6989685U JPH0312820Y2 (en]) 1985-05-11 1985-05-11

Publications (2)

Publication Number Publication Date
JPS61184751U JPS61184751U (en]) 1986-11-18
JPH0312820Y2 true JPH0312820Y2 (en]) 1991-03-26

Family

ID=30606001

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6989685U Expired JPH0312820Y2 (en]) 1985-05-11 1985-05-11

Country Status (1)

Country Link
JP (1) JPH0312820Y2 (en])

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5394422B2 (ja) * 2010-04-27 2014-01-22 株式会社エステック 可動梯子
JP5626938B1 (ja) * 2013-06-25 2014-11-19 株式会社東洋技研 安全梯子
JP6975455B2 (ja) * 2018-01-17 2021-12-01 阿南電機株式会社 マンホール用安全柵装置
JP7266294B2 (ja) * 2019-08-27 2023-04-28 阿南電機株式会社 マンホール用昇降式安全柵
JP7390717B2 (ja) * 2020-03-09 2023-12-04 株式会社ピカコーポレイション 手摺付き昇降梯子

Also Published As

Publication number Publication date
JPS61184751U (en]) 1986-11-18

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