JPS50115526A - - Google Patents

Info

Publication number
JPS50115526A
JPS50115526A JP49020280A JP2028074A JPS50115526A JP S50115526 A JPS50115526 A JP S50115526A JP 49020280 A JP49020280 A JP 49020280A JP 2028074 A JP2028074 A JP 2028074A JP S50115526 A JPS50115526 A JP S50115526A
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.)
Granted
Application number
JP49020280A
Other languages
Japanese (ja)
Other versions
JPS5346449B2 (enrdf_load_stackoverflow
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 JP2028074A priority Critical patent/JPS5346449B2/ja
Priority to US05/549,767 priority patent/US3997258A/en
Priority to DE19752507014 priority patent/DE2507014A1/de
Priority to FR7505155A priority patent/FR2261552A1/fr
Publication of JPS50115526A publication Critical patent/JPS50115526A/ja
Publication of JPS5346449B2 publication Critical patent/JPS5346449B2/ja
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/30—Details adapted to collapse or fold, e.g. for portability

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
JP2028074A 1974-02-20 1974-02-20 Expired JPS5346449B2 (enrdf_load_stackoverflow)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2028074A JPS5346449B2 (enrdf_load_stackoverflow) 1974-02-20 1974-02-20
US05/549,767 US3997258A (en) 1974-02-20 1975-02-13 Film reader
DE19752507014 DE2507014A1 (de) 1974-02-20 1975-02-19 Filmbetrachtungsgeraet
FR7505155A FR2261552A1 (en) 1974-02-20 1975-02-19 Folding microfilm reader - with flexible hood and hinged filter plate to seal reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2028074A JPS5346449B2 (enrdf_load_stackoverflow) 1974-02-20 1974-02-20

Publications (2)

Publication Number Publication Date
JPS50115526A true JPS50115526A (enrdf_load_stackoverflow) 1975-09-10
JPS5346449B2 JPS5346449B2 (enrdf_load_stackoverflow) 1978-12-14

Family

ID=12022742

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2028074A Expired JPS5346449B2 (enrdf_load_stackoverflow) 1974-02-20 1974-02-20

Country Status (2)

Country Link
JP (1) JPS5346449B2 (enrdf_load_stackoverflow)
FR (1) FR2261552A1 (enrdf_load_stackoverflow)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4858746A (enrdf_load_stackoverflow) * 1971-11-24 1973-08-17
JPS4865226U (enrdf_load_stackoverflow) * 1971-11-24 1973-08-18

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4858746A (enrdf_load_stackoverflow) * 1971-11-24 1973-08-17
JPS4865226U (enrdf_load_stackoverflow) * 1971-11-24 1973-08-18

Also Published As

Publication number Publication date
FR2261552A1 (en) 1975-09-12
JPS5346449B2 (enrdf_load_stackoverflow) 1978-12-14
FR2261552B1 (enrdf_load_stackoverflow) 1977-07-08

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