FR679630A - Shutter for cinematographic projection device - Google Patents

Shutter for cinematographic projection device

Info

Publication number
FR679630A
FR679630A FR679630DA FR679630A FR 679630 A FR679630 A FR 679630A FR 679630D A FR679630D A FR 679630DA FR 679630 A FR679630 A FR 679630A
Authority
FR
France
Prior art keywords
shutter
projection device
cinematographic projection
cinematographic
projection
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.)
Pathe Cinema SA
Original Assignee
Pathe Cinema 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 Pathe Cinema SA filed Critical Pathe Cinema SA
Application granted granted Critical
Publication of FR679630A publication Critical patent/FR679630A/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
    • G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR679630D 1929-07-31 1929-07-31 Shutter for cinematographic projection device Expired FR679630A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR679630T 1929-07-31

Publications (1)

Publication Number Publication Date
FR679630A true FR679630A (en) 1930-04-15

Family

ID=9021776

Family Applications (1)

Application Number Title Priority Date Filing Date
FR679630D Expired FR679630A (en) 1929-07-31 1929-07-31 Shutter for cinematographic projection device

Country Status (1)

Country Link
FR (1) FR679630A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2504966A (en) * 1946-08-15 1950-04-25 Ampro Corp Safety shutter for picture projectors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2504966A (en) * 1946-08-15 1950-04-25 Ampro Corp Safety shutter for picture projectors

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