JPS644694U - - Google Patents

Info

Publication number
JPS644694U
JPS644694U JP9844787U JP9844787U JPS644694U JP S644694 U JPS644694 U JP S644694U JP 9844787 U JP9844787 U JP 9844787U JP 9844787 U JP9844787 U JP 9844787U JP S644694 U JPS644694 U JP S644694U
Authority
JP
Japan
Prior art keywords
straight line
ruler
drawn
drawn sides
sides
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
JP9844787U
Other languages
English (en)
Japanese (ja)
Other versions
JPH055037Y2 (US07494231-20090224-C00006.png
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 JP1987098447U priority Critical patent/JPH055037Y2/ja
Publication of JPS644694U publication Critical patent/JPS644694U/ja
Application granted granted Critical
Publication of JPH055037Y2 publication Critical patent/JPH055037Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)
JP1987098447U 1987-06-29 1987-06-29 Expired - Lifetime JPH055037Y2 (US07494231-20090224-C00006.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987098447U JPH055037Y2 (US07494231-20090224-C00006.png) 1987-06-29 1987-06-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987098447U JPH055037Y2 (US07494231-20090224-C00006.png) 1987-06-29 1987-06-29

Publications (2)

Publication Number Publication Date
JPS644694U true JPS644694U (US07494231-20090224-C00006.png) 1989-01-12
JPH055037Y2 JPH055037Y2 (US07494231-20090224-C00006.png) 1993-02-09

Family

ID=31324720

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987098447U Expired - Lifetime JPH055037Y2 (US07494231-20090224-C00006.png) 1987-06-29 1987-06-29

Country Status (1)

Country Link
JP (1) JPH055037Y2 (US07494231-20090224-C00006.png)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5221545U (US07494231-20090224-C00006.png) * 1975-08-01 1977-02-16
JPS5743196U (US07494231-20090224-C00006.png) * 1980-08-26 1982-03-09

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5221545B2 (US07494231-20090224-C00006.png) * 1971-11-02 1977-06-11
JPS54110204A (en) * 1978-02-16 1979-08-29 Nippon Mining Co Ltd Defoaming in thermal-cracking reactor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5221545U (US07494231-20090224-C00006.png) * 1975-08-01 1977-02-16
JPS5743196U (US07494231-20090224-C00006.png) * 1980-08-26 1982-03-09

Also Published As

Publication number Publication date
JPH055037Y2 (US07494231-20090224-C00006.png) 1993-02-09

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