FR661947A - Improvements to cameras - Google Patents

Improvements to cameras

Info

Publication number
FR661947A
FR661947A FR661947DA FR661947A FR 661947 A FR661947 A FR 661947A FR 661947D A FR661947D A FR 661947DA FR 661947 A FR661947 A FR 661947A
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
Roland Choain
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 FR661947A publication Critical patent/FR661947A/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
    • G03B19/00—Cameras
    • G03B19/02—Still-picture cameras
    • G03B19/04—Roll-film cameras
    • G03B19/08—Roll-film cameras with provision for alternative use with plates or cut-films

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR661947D 1928-10-09 1928-10-09 Improvements to cameras Expired FR661947A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR661947T 1928-10-09

Publications (1)

Publication Number Publication Date
FR661947A true FR661947A (en) 1929-07-31

Family

ID=9011207

Family Applications (1)

Application Number Title Priority Date Filing Date
FR661947D Expired FR661947A (en) 1928-10-09 1928-10-09 Improvements to cameras

Country Status (1)

Country Link
FR (1) FR661947A (en)

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