JPH0289301U - - Google Patents

Info

Publication number
JPH0289301U
JPH0289301U JP16998188U JP16998188U JPH0289301U JP H0289301 U JPH0289301 U JP H0289301U JP 16998188 U JP16998188 U JP 16998188U JP 16998188 U JP16998188 U JP 16998188U JP H0289301 U JPH0289301 U JP H0289301U
Authority
JP
Japan
Prior art keywords
angle
protractor
ruler
line
slope
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
JP16998188U
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 JP16998188U priority Critical patent/JPH0289301U/ja
Publication of JPH0289301U publication Critical patent/JPH0289301U/ja
Pending legal-status Critical Current

Links

Landscapes

  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)
JP16998188U 1988-12-28 1988-12-28 Pending JPH0289301U (US06368395-20020409-C00050.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16998188U JPH0289301U (US06368395-20020409-C00050.png) 1988-12-28 1988-12-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16998188U JPH0289301U (US06368395-20020409-C00050.png) 1988-12-28 1988-12-28

Publications (1)

Publication Number Publication Date
JPH0289301U true JPH0289301U (US06368395-20020409-C00050.png) 1990-07-16

Family

ID=31460525

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16998188U Pending JPH0289301U (US06368395-20020409-C00050.png) 1988-12-28 1988-12-28

Country Status (1)

Country Link
JP (1) JPH0289301U (US06368395-20020409-C00050.png)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS582616B2 (ja) * 1978-07-05 1983-01-18 土屋 正彦 イオンの生成装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS582616B2 (ja) * 1978-07-05 1983-01-18 土屋 正彦 イオンの生成装置

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