FR700468A - Synchronous cinematographic projection and phonographic hearing apparatus - Google Patents

Synchronous cinematographic projection and phonographic hearing apparatus

Info

Publication number
FR700468A
FR700468A FR700468DA FR700468A FR 700468 A FR700468 A FR 700468A FR 700468D A FR700468D A FR 700468DA FR 700468 A FR700468 A FR 700468A
Authority
FR
France
Prior art keywords
phonographic
synchronous
hearing apparatus
cinematographic projection
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
Jacques-Dabert Boularan
Pierre-Armand Digeon
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 FR700468A publication Critical patent/FR700468A/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)
FR700468D 1929-11-20 1929-11-20 Synchronous cinematographic projection and phonographic hearing apparatus Expired FR700468A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR700468T 1929-11-20

Publications (1)

Publication Number Publication Date
FR700468A true FR700468A (en) 1931-03-02

Family

ID=9050380

Family Applications (1)

Application Number Title Priority Date Filing Date
FR700468D Expired FR700468A (en) 1929-11-20 1929-11-20 Synchronous cinematographic projection and phonographic hearing apparatus

Country Status (1)

Country Link
FR (1) FR700468A (en)

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