JPH01132789U - - Google Patents

Info

Publication number
JPH01132789U
JPH01132789U JP2667588U JP2667588U JPH01132789U JP H01132789 U JPH01132789 U JP H01132789U JP 2667588 U JP2667588 U JP 2667588U JP 2667588 U JP2667588 U JP 2667588U JP H01132789 U JPH01132789 U JP H01132789U
Authority
JP
Japan
Prior art keywords
apex angle
apex
holding
points
utility
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.)
Pending
Application number
JP2667588U
Other languages
English (en)
Japanese (ja)
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 JP2667588U priority Critical patent/JPH01132789U/ja
Publication of JPH01132789U publication Critical patent/JPH01132789U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)
JP2667588U 1988-02-29 1988-02-29 Pending JPH01132789U (US20030220297A1-20031127-C00074.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2667588U JPH01132789U (US20030220297A1-20031127-C00074.png) 1988-02-29 1988-02-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2667588U JPH01132789U (US20030220297A1-20031127-C00074.png) 1988-02-29 1988-02-29

Publications (1)

Publication Number Publication Date
JPH01132789U true JPH01132789U (US20030220297A1-20031127-C00074.png) 1989-09-08

Family

ID=31248518

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2667588U Pending JPH01132789U (US20030220297A1-20031127-C00074.png) 1988-02-29 1988-02-29

Country Status (1)

Country Link
JP (1) JPH01132789U (US20030220297A1-20031127-C00074.png)

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