FR929296A - Improvements to sound cinematographic projectors - Google Patents

Improvements to sound cinematographic projectors

Info

Publication number
FR929296A
FR929296A FR929296DA FR929296A FR 929296 A FR929296 A FR 929296A FR 929296D A FR929296D A FR 929296DA FR 929296 A FR929296 A FR 929296A
Authority
FR
France
Prior art keywords
sound
cinematographic projectors
cinematographic
projectors
sound cinematographic
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
Jean Weissbrodt
Jacques-Jean Broido
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 FR929296A publication Critical patent/FR929296A/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
    • G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR929296D 1944-12-06 1944-12-06 Improvements to sound cinematographic projectors Expired FR929296A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR929296T 1944-12-06

Publications (1)

Publication Number Publication Date
FR929296A true FR929296A (en) 1947-12-22

Family

ID=9442379

Family Applications (1)

Application Number Title Priority Date Filing Date
FR929296D Expired FR929296A (en) 1944-12-06 1944-12-06 Improvements to sound cinematographic projectors

Country Status (1)

Country Link
FR (1) FR929296A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112770094A (en) * 2020-12-31 2021-05-07 成都极米科技股份有限公司 Projection equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112770094A (en) * 2020-12-31 2021-05-07 成都极米科技股份有限公司 Projection equipment
CN112770094B (en) * 2020-12-31 2023-03-24 成都极米科技股份有限公司 Projection equipment

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