FR645091A - Improvements to cameras - Google Patents

Improvements to cameras

Info

Publication number
FR645091A
FR645091A FR645091DA FR645091A FR 645091 A FR645091 A FR 645091A FR 645091D A FR645091D A FR 645091DA FR 645091 A FR645091 A FR 645091A
Authority
FR
France
Prior art keywords
cameras
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)
Inventor
Desire Papin
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
Application granted granted Critical
Publication of FR645091A publication Critical patent/FR645091A/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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/58—Means for varying duration of "open" period of shutter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR645091D 1927-12-03 1927-12-03 Improvements to cameras Expired FR645091A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR645091T 1927-12-03

Publications (1)

Publication Number Publication Date
FR645091A true FR645091A (en) 1928-10-19

Family

ID=9000527

Family Applications (1)

Application Number Title Priority Date Filing Date
FR645091D Expired FR645091A (en) 1927-12-03 1927-12-03 Improvements to cameras

Country Status (1)

Country Link
FR (1) FR645091A (en)

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