JPS5287822A - Expansion refuge staircase - Google Patents

Expansion refuge staircase

Info

Publication number
JPS5287822A
JPS5287822A JP13144875A JP13144875A JPS5287822A JP S5287822 A JPS5287822 A JP S5287822A JP 13144875 A JP13144875 A JP 13144875A JP 13144875 A JP13144875 A JP 13144875A JP S5287822 A JPS5287822 A JP S5287822A
Authority
JP
Japan
Prior art keywords
refuge
staircase
expansion
refuge staircase
expansion refuge
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
JP13144875A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5753500B2 (enExample
Inventor
Hiromitsu Naka
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.)
Naka Technical Laboratory Co Ltd
Original Assignee
Naka Technical Laboratory Co 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 Naka Technical Laboratory Co Ltd filed Critical Naka Technical Laboratory Co Ltd
Priority to JP13144875A priority Critical patent/JPS5287822A/ja
Publication of JPS5287822A publication Critical patent/JPS5287822A/ja
Publication of JPS5753500B2 publication Critical patent/JPS5753500B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Ladders (AREA)
  • Steps, Ramps, And Handrails (AREA)
JP13144875A 1975-11-04 1975-11-04 Expansion refuge staircase Granted JPS5287822A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13144875A JPS5287822A (en) 1975-11-04 1975-11-04 Expansion refuge staircase

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13144875A JPS5287822A (en) 1975-11-04 1975-11-04 Expansion refuge staircase

Publications (2)

Publication Number Publication Date
JPS5287822A true JPS5287822A (en) 1977-07-22
JPS5753500B2 JPS5753500B2 (enExample) 1982-11-13

Family

ID=15058185

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13144875A Granted JPS5287822A (en) 1975-11-04 1975-11-04 Expansion refuge staircase

Country Status (1)

Country Link
JP (1) JPS5287822A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007170098A (ja) * 2005-12-26 2007-07-05 Techno Ace:Kk 梯子

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49118231U (enExample) * 1973-01-30 1974-10-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49118231U (enExample) * 1973-01-30 1974-10-09

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007170098A (ja) * 2005-12-26 2007-07-05 Techno Ace:Kk 梯子

Also Published As

Publication number Publication date
JPS5753500B2 (enExample) 1982-11-13

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