JPS50133832A - - Google Patents

Info

Publication number
JPS50133832A
JPS50133832A JP3943274A JP3943274A JPS50133832A JP S50133832 A JPS50133832 A JP S50133832A JP 3943274 A JP3943274 A JP 3943274A JP 3943274 A JP3943274 A JP 3943274A JP S50133832 A JPS50133832 A JP S50133832A
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.)
Pending
Application number
JP3943274A
Other languages
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 JP3943274A priority Critical patent/JPS50133832A/ja
Publication of JPS50133832A publication Critical patent/JPS50133832A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Lenses (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Lens Barrels (AREA)
JP3943274A 1974-04-09 1974-04-09 Pending JPS50133832A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3943274A JPS50133832A (en) 1974-04-09 1974-04-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3943274A JPS50133832A (en) 1974-04-09 1974-04-09

Publications (1)

Publication Number Publication Date
JPS50133832A true JPS50133832A (en) 1975-10-23

Family

ID=12552823

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3943274A Pending JPS50133832A (en) 1974-04-09 1974-04-09

Country Status (1)

Country Link
JP (1) JPS50133832A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS599332U (en) * 1982-07-12 1984-01-21 株式会社学習研究社 Overhead projector using variable focus lens
JPS59228223A (en) * 1983-06-09 1984-12-21 Olympus Optical Co Ltd Adapter lens
JPS61148044U (en) * 1985-03-05 1986-09-12

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4890525A (en) * 1972-03-01 1973-11-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4890525A (en) * 1972-03-01 1973-11-26

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS599332U (en) * 1982-07-12 1984-01-21 株式会社学習研究社 Overhead projector using variable focus lens
JPS59228223A (en) * 1983-06-09 1984-12-21 Olympus Optical Co Ltd Adapter lens
JPH0411005B2 (en) * 1983-06-09 1992-02-27
JPS61148044U (en) * 1985-03-05 1986-09-12

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