FR936054A - Improvements to microfilm reading devices - Google Patents

Improvements to microfilm reading devices

Info

Publication number
FR936054A
FR936054A FR936054DA FR936054A FR 936054 A FR936054 A FR 936054A FR 936054D A FR936054D A FR 936054DA FR 936054 A FR936054 A FR 936054A
Authority
FR
France
Prior art keywords
reading devices
microfilm reading
microfilm
devices
reading
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.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR936054A publication Critical patent/FR936054A/en
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
    • G03B21/10—Projectors with built-in or built-on screen
    • G03B21/11—Projectors with built-in or built-on screen for microfilm reading
FR936054D 1946-11-08 1946-11-08 Improvements to microfilm reading devices Expired FR936054A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR936054T 1946-11-08

Publications (1)

Publication Number Publication Date
FR936054A true FR936054A (en) 1948-07-08

Family

ID=9457132

Family Applications (1)

Application Number Title Priority Date Filing Date
FR936054D Expired FR936054A (en) 1946-11-08 1946-11-08 Improvements to microfilm reading devices

Country Status (1)

Country Link
FR (1) FR936054A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4621913A (en) * 1984-09-10 1986-11-11 Kabushiki Kaisha Yamada Kohgaku Seisakusho Microscope with projector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4621913A (en) * 1984-09-10 1986-11-11 Kabushiki Kaisha Yamada Kohgaku Seisakusho Microscope with projector

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