FR868755A - Perfectionnements aux obturateurs photographiques - Google Patents

Perfectionnements aux obturateurs photographiques

Info

Publication number
FR868755A
FR868755A FR868755DA FR868755A FR 868755 A FR868755 A FR 868755A FR 868755D A FR868755D A FR 868755DA FR 868755 A FR868755 A FR 868755A
Authority
FR
France
Prior art keywords
photographic shutters
shutters
photographic
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
English (en)
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.)
HISTRA CORP
Original Assignee
HISTRA CORP
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 HISTRA CORP filed Critical HISTRA CORP
Application granted granted Critical
Publication of FR868755A publication Critical patent/FR868755A/fr
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
    • G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane
    • G03B9/14—Two separate members moving in opposite directions

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR868755D 1940-07-22 1940-07-22 Perfectionnements aux obturateurs photographiques Expired FR868755A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR868755T 1940-07-22

Publications (1)

Publication Number Publication Date
FR868755A true FR868755A (fr) 1942-01-15

Family

ID=9346226

Family Applications (1)

Application Number Title Priority Date Filing Date
FR868755D Expired FR868755A (fr) 1940-07-22 1940-07-22 Perfectionnements aux obturateurs photographiques

Country Status (1)

Country Link
FR (1) FR868755A (fr)

Similar Documents

Publication Publication Date Title
FR949230A (fr) Perfectionnements aux émulsions photographiques
FR949229A (fr) Nouvelles émulsions photographiques
FR878099A (fr) Perfectionnements aux films photographiques
FR949228A (fr) émulsions photographiques
FR945149A (fr) émulsions photographiques
FR889282A (fr) Objectif photographique
FR844866A (fr) Révélateurs photographiques
FR868755A (fr) Perfectionnements aux obturateurs photographiques
FR945137A (fr) Perfectionnements aux obturateurs photographiques
FR870126A (fr) Perfectionnements aux appareils photographiques
FR54820E (fr) Perfectionnements aux films photographiques
FR821693A (fr) Perfectionnements aux obturateurs photographiques
FR867473A (fr) Perfectionnements apportés aux agrandisseurs photographiques
FR869887A (fr) Viseur photographique
FR851912A (fr) Perfectionnements aux émulsions photographiques
FR945135A (fr) Film photographique
FR867389A (fr) Perfectionnements aux obturateurs photographiques
FR907557A (fr) Perfectionnements aux appareils cinématographiques
FR940904A (fr) Perfectionnements aux émulsions photographiques
FR851736A (fr) Perfectionnements aux obturateurs photographiques
FR851185A (fr) Perfectionnements aux obturateurs photographiques
FR856365A (fr) Perfectionnements aux obturateurs photographiques
FR871322A (fr) Obturateur photographique
FR874777A (fr) Perfectionnements aux appareils photographiques
FR940907A (fr) Obturateur photographique