JPH0428800Y2 - - Google Patents

Info

Publication number
JPH0428800Y2
JPH0428800Y2 JP1987019600U JP1960087U JPH0428800Y2 JP H0428800 Y2 JPH0428800 Y2 JP H0428800Y2 JP 1987019600 U JP1987019600 U JP 1987019600U JP 1960087 U JP1960087 U JP 1960087U JP H0428800 Y2 JPH0428800 Y2 JP H0428800Y2
Authority
JP
Japan
Prior art keywords
rotating body
ruler
rope
spring
drawing board
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
JP1987019600U
Other languages
English (en)
Japanese (ja)
Other versions
JPS62147594U (en, 2012
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 JP1987019600U priority Critical patent/JPH0428800Y2/ja
Publication of JPS62147594U publication Critical patent/JPS62147594U/ja
Application granted granted Critical
Publication of JPH0428800Y2 publication Critical patent/JPH0428800Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)
JP1987019600U 1987-02-13 1987-02-13 Expired JPH0428800Y2 (en, 2012)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987019600U JPH0428800Y2 (en, 2012) 1987-02-13 1987-02-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987019600U JPH0428800Y2 (en, 2012) 1987-02-13 1987-02-13

Publications (2)

Publication Number Publication Date
JPS62147594U JPS62147594U (en, 2012) 1987-09-18
JPH0428800Y2 true JPH0428800Y2 (en, 2012) 1992-07-13

Family

ID=30814342

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987019600U Expired JPH0428800Y2 (en, 2012) 1987-02-13 1987-02-13

Country Status (1)

Country Link
JP (1) JPH0428800Y2 (en, 2012)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5439045Y2 (en, 2012) * 1975-08-20 1979-11-20

Also Published As

Publication number Publication date
JPS62147594U (en, 2012) 1987-09-18

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