JPH086113Y2 - マンホール用補助梯子 - Google Patents

マンホール用補助梯子

Info

Publication number
JPH086113Y2
JPH086113Y2 JP1989103587U JP10358789U JPH086113Y2 JP H086113 Y2 JPH086113 Y2 JP H086113Y2 JP 1989103587 U JP1989103587 U JP 1989103587U JP 10358789 U JP10358789 U JP 10358789U JP H086113 Y2 JPH086113 Y2 JP H086113Y2
Authority
JP
Japan
Prior art keywords
manhole
auxiliary ladder
flange
frame body
frame
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
JP1989103587U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0342834U (pl
Inventor
浩司 杉森
Original Assignee
旭テック株式会社
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 旭テック株式会社 filed Critical 旭テック株式会社
Priority to JP1989103587U priority Critical patent/JPH086113Y2/ja
Publication of JPH0342834U publication Critical patent/JPH0342834U/ja
Application granted granted Critical
Publication of JPH086113Y2 publication Critical patent/JPH086113Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Ladders (AREA)
JP1989103587U 1989-09-04 1989-09-04 マンホール用補助梯子 Expired - Lifetime JPH086113Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989103587U JPH086113Y2 (ja) 1989-09-04 1989-09-04 マンホール用補助梯子

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989103587U JPH086113Y2 (ja) 1989-09-04 1989-09-04 マンホール用補助梯子

Publications (2)

Publication Number Publication Date
JPH0342834U JPH0342834U (pl) 1991-04-23
JPH086113Y2 true JPH086113Y2 (ja) 1996-02-21

Family

ID=31652415

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989103587U Expired - Lifetime JPH086113Y2 (ja) 1989-09-04 1989-09-04 マンホール用補助梯子

Country Status (1)

Country Link
JP (1) JPH086113Y2 (pl)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6017904B2 (ja) * 1981-06-11 1985-05-07 日之出水道機器株式会社 転落防止機構付地下構造物用蓋
JPS6033162Y2 (ja) * 1982-05-31 1985-10-03 長島鋳物株式会社 補助梯子付マンホ−ル

Also Published As

Publication number Publication date
JPH0342834U (pl) 1991-04-23

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