JPH0445792U - - Google Patents

Info

Publication number
JPH0445792U
JPH0445792U JP8690890U JP8690890U JPH0445792U JP H0445792 U JPH0445792 U JP H0445792U JP 8690890 U JP8690890 U JP 8690890U JP 8690890 U JP8690890 U JP 8690890U JP H0445792 U JPH0445792 U JP H0445792U
Authority
JP
Japan
Prior art keywords
protractor
reference point
utility
predetermined range
transparent material
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
JP8690890U
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 JP8690890U priority Critical patent/JPH0445792U/ja
Publication of JPH0445792U publication Critical patent/JPH0445792U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Lenses (AREA)
JP8690890U 1990-08-20 1990-08-20 Pending JPH0445792U (US20020193084A1-20021219-M00002.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8690890U JPH0445792U (US20020193084A1-20021219-M00002.png) 1990-08-20 1990-08-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8690890U JPH0445792U (US20020193084A1-20021219-M00002.png) 1990-08-20 1990-08-20

Publications (1)

Publication Number Publication Date
JPH0445792U true JPH0445792U (US20020193084A1-20021219-M00002.png) 1992-04-17

Family

ID=31818830

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8690890U Pending JPH0445792U (US20020193084A1-20021219-M00002.png) 1990-08-20 1990-08-20

Country Status (1)

Country Link
JP (1) JPH0445792U (US20020193084A1-20021219-M00002.png)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5146230A (en) * 1974-10-16 1976-04-20 Shoyo Sangyo Jugen Bundoki jogi renzukenyohamono

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5146230A (en) * 1974-10-16 1976-04-20 Shoyo Sangyo Jugen Bundoki jogi renzukenyohamono

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