FR967939A - Improvements relating to the use of films and microfilms - Google Patents

Improvements relating to the use of films and microfilms

Info

Publication number
FR967939A
FR967939A FR967939DA FR967939A FR 967939 A FR967939 A FR 967939A FR 967939D A FR967939D A FR 967939DA FR 967939 A FR967939 A FR 967939A
Authority
FR
France
Prior art keywords
microfilms
films
improvements relating
relating
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 FR967939A publication Critical patent/FR967939A/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)
FR967939D 1948-06-11 1948-06-11 Improvements relating to the use of films and microfilms Expired FR967939A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR967939T 1948-06-11

Publications (1)

Publication Number Publication Date
FR967939A true FR967939A (en) 1950-11-15

Family

ID=9500979

Family Applications (1)

Application Number Title Priority Date Filing Date
FR967939D Expired FR967939A (en) 1948-06-11 1948-06-11 Improvements relating to the use of films and microfilms

Country Status (1)

Country Link
FR (1) FR967939A (en)

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