JPS51122552A - Elevation guide ladder for manhole - Google Patents

Elevation guide ladder for manhole

Info

Publication number
JPS51122552A
JPS51122552A JP4587675A JP4587675A JPS51122552A JP S51122552 A JPS51122552 A JP S51122552A JP 4587675 A JP4587675 A JP 4587675A JP 4587675 A JP4587675 A JP 4587675A JP S51122552 A JPS51122552 A JP S51122552A
Authority
JP
Japan
Prior art keywords
manhole
elevation guide
guide ladder
ladder
elevation
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
JP4587675A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5343859B2 (tr
Inventor
Kazuya Oouchi
Chiyuuichi Nishijima
Zenji Adachi
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP4587675A priority Critical patent/JPS51122552A/ja
Publication of JPS51122552A publication Critical patent/JPS51122552A/ja
Publication of JPS5343859B2 publication Critical patent/JPS5343859B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Ladders (AREA)
JP4587675A 1975-04-17 1975-04-17 Elevation guide ladder for manhole Granted JPS51122552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4587675A JPS51122552A (en) 1975-04-17 1975-04-17 Elevation guide ladder for manhole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4587675A JPS51122552A (en) 1975-04-17 1975-04-17 Elevation guide ladder for manhole

Publications (2)

Publication Number Publication Date
JPS51122552A true JPS51122552A (en) 1976-10-26
JPS5343859B2 JPS5343859B2 (tr) 1978-11-24

Family

ID=12731409

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4587675A Granted JPS51122552A (en) 1975-04-17 1975-04-17 Elevation guide ladder for manhole

Country Status (1)

Country Link
JP (1) JPS51122552A (tr)

Also Published As

Publication number Publication date
JPS5343859B2 (tr) 1978-11-24

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