FR405238A - Perfectionnements aux obturateurs photographiques - Google Patents

Perfectionnements aux obturateurs photographiques

Info

Publication number
FR405238A
FR405238A FR405238DA FR405238A FR 405238 A FR405238 A FR 405238A FR 405238D A FR405238D A FR 405238DA FR 405238 A FR405238 A FR 405238A
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)
Inventor
Frank Philip Whitehead
Walter Frederick Giles
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR405238A publication Critical patent/FR405238A/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
    • G03B9/28—Roller blind or flexible plate
    • G03B9/32—Double blind
    • G03B9/34—Double blind with adjustable slot; with mechanism controlling relative movement of blinds to form slot

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR405238D 1908-07-22 1909-07-20 Perfectionnements aux obturateurs photographiques Expired FR405238A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB405238X 1908-07-22

Publications (1)

Publication Number Publication Date
FR405238A true FR405238A (fr) 1909-12-23

Family

ID=1449735

Family Applications (1)

Application Number Title Priority Date Filing Date
FR405238D Expired FR405238A (fr) 1908-07-22 1909-07-20 Perfectionnements aux obturateurs photographiques

Country Status (1)

Country Link
FR (1) FR405238A (fr)

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