FR970827A - Improvements to devices for the protection, classification and use of microfilm strips - Google Patents

Improvements to devices for the protection, classification and use of microfilm strips

Info

Publication number
FR970827A
FR970827A FR970827DA FR970827A FR 970827 A FR970827 A FR 970827A FR 970827D A FR970827D A FR 970827DA FR 970827 A FR970827 A FR 970827A
Authority
FR
France
Prior art keywords
classification
protection
devices
microfilm strips
microfilm
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 FR970827A publication Critical patent/FR970827A/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
    • G03B21/54—Accessories
    • G03B21/64—Means for mounting individual pictures to be projected, e.g. frame for transparency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR970827D 1948-06-08 1948-06-08 Improvements to devices for the protection, classification and use of microfilm strips Expired FR970827A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR970827T 1948-06-08

Publications (1)

Publication Number Publication Date
FR970827A true FR970827A (en) 1951-01-09

Family

ID=9508684

Family Applications (1)

Application Number Title Priority Date Filing Date
FR970827D Expired FR970827A (en) 1948-06-08 1948-06-08 Improvements to devices for the protection, classification and use of microfilm strips

Country Status (1)

Country Link
FR (1) FR970827A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE909998C (en) * 1952-05-18 1954-04-26 Johannes Jost Slide frame

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE909998C (en) * 1952-05-18 1954-04-26 Johannes Jost Slide frame

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