FR822401A - Focal shutter for photography - Google Patents

Focal shutter for photography

Info

Publication number
FR822401A
FR822401A FR822401DA FR822401A FR 822401 A FR822401 A FR 822401A FR 822401D A FR822401D A FR 822401DA FR 822401 A FR822401 A FR 822401A
Authority
FR
France
Prior art keywords
photography
focal shutter
shutter
focal
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.)
Anciens Etablissements Barbier Benard and Turenne SA
Original Assignee
Anciens Etablissements Barbier Benard and Turenne 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 Anciens Etablissements Barbier Benard and Turenne SA filed Critical Anciens Etablissements Barbier Benard and Turenne SA
Application granted granted Critical
Publication of FR822401A publication Critical patent/FR822401A/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
    • G03B9/08—Shutters
    • G03B9/36—Sliding rigid plate
    • G03B9/40—Double plate
    • G03B9/42—Double plate with adjustable slot; with mechanism controlling relative movement of plates to form slot

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR822401D 1936-09-04 1936-09-04 Focal shutter for photography Expired FR822401A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR822401T 1936-09-04

Publications (1)

Publication Number Publication Date
FR822401A true FR822401A (en) 1937-12-30

Family

ID=9280885

Family Applications (1)

Application Number Title Priority Date Filing Date
FR822401D Expired FR822401A (en) 1936-09-04 1936-09-04 Focal shutter for photography

Country Status (1)

Country Link
FR (1) FR822401A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2664800A (en) * 1949-10-05 1954-01-05 Mayo Alfred Croger Photographic camera and shutter mechanism therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2664800A (en) * 1949-10-05 1954-01-05 Mayo Alfred Croger Photographic camera and shutter mechanism therefor

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