JPS5647642Y2 - - Google Patents

Info

Publication number
JPS5647642Y2
JPS5647642Y2 JP1979048938U JP4893879U JPS5647642Y2 JP S5647642 Y2 JPS5647642 Y2 JP S5647642Y2 JP 1979048938 U JP1979048938 U JP 1979048938U JP 4893879 U JP4893879 U JP 4893879U JP S5647642 Y2 JPS5647642 Y2 JP S5647642Y2
Authority
JP
Japan
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.)
Expired
Application number
JP1979048938U
Other languages
Japanese (ja)
Other versions
JPS55149768U (de
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 JP1979048938U priority Critical patent/JPS5647642Y2/ja
Publication of JPS55149768U publication Critical patent/JPS55149768U/ja
Application granted granted Critical
Publication of JPS5647642Y2 publication Critical patent/JPS5647642Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Instructional Devices (AREA)
JP1979048938U 1979-04-12 1979-04-12 Expired JPS5647642Y2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1979048938U JPS5647642Y2 (de) 1979-04-12 1979-04-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1979048938U JPS5647642Y2 (de) 1979-04-12 1979-04-12

Publications (2)

Publication Number Publication Date
JPS55149768U JPS55149768U (de) 1980-10-28
JPS5647642Y2 true JPS5647642Y2 (de) 1981-11-07

Family

ID=28933596

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1979048938U Expired JPS5647642Y2 (de) 1979-04-12 1979-04-12

Country Status (1)

Country Link
JP (1) JPS5647642Y2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106448392A (zh) * 2016-09-09 2017-02-22 靳延 光线折射演示教具

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2550179Y2 (ja) * 1993-04-09 1997-10-08 島津理化器械株式会社 光学教習具

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4412835Y1 (de) * 1965-05-31 1969-05-28

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4412835Y1 (de) * 1965-05-31 1969-05-28

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106448392A (zh) * 2016-09-09 2017-02-22 靳延 光线折射演示教具

Also Published As

Publication number Publication date
JPS55149768U (de) 1980-10-28

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