JPS6414097A - Shape universal ruler - Google Patents

Shape universal ruler

Info

Publication number
JPS6414097A
JPS6414097A JP17039487A JP17039487A JPS6414097A JP S6414097 A JPS6414097 A JP S6414097A JP 17039487 A JP17039487 A JP 17039487A JP 17039487 A JP17039487 A JP 17039487A JP S6414097 A JPS6414097 A JP S6414097A
Authority
JP
Japan
Prior art keywords
ruler
short
long
scale
center
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
JP17039487A
Other languages
Japanese (ja)
Inventor
Keinosuke Kita
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP17039487A priority Critical patent/JPS6414097A/en
Publication of JPS6414097A publication Critical patent/JPS6414097A/en
Pending legal-status Critical Current

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)

Abstract

PURPOSE: To draw straight lines or triangles easily by combining long and short rectangular rulers with scale on their longer edges. CONSTITUTION: The ruler consists of long and short rectangular rulers with scale on their longer edges. A semicircular protractor with projected circular edge is formed on the almost center of the long ruler. A long slit is formed in the center of the short ruler along with the scale and several or more sharp arrow recesses are formed along the slit facing the scale. The short ruler is placed on the long ruler within the area of the latter. The point at the end of the scale on the central line of the short scale and the center of the protractor of the long ruler is matched to make a hole through the both rulers. They are supported, as they turn freely and fully around this axis. A line or arrow mark is written on the short ruler from the axis to the mark of 90 deg. when the short ruler is adjusted to make 90 deg. angle precisely between the short ruler and the long ruler using a triangle ruler.
JP17039487A 1987-07-08 1987-07-08 Shape universal ruler Pending JPS6414097A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17039487A JPS6414097A (en) 1987-07-08 1987-07-08 Shape universal ruler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17039487A JPS6414097A (en) 1987-07-08 1987-07-08 Shape universal ruler

Publications (1)

Publication Number Publication Date
JPS6414097A true JPS6414097A (en) 1989-01-18

Family

ID=15904114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17039487A Pending JPS6414097A (en) 1987-07-08 1987-07-08 Shape universal ruler

Country Status (1)

Country Link
JP (1) JPS6414097A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005028112A (en) * 2003-06-17 2005-02-03 Richell Corp Small article holder and eyelet for small article holder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005028112A (en) * 2003-06-17 2005-02-03 Richell Corp Small article holder and eyelet for small article holder

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