FR972124A - Improvements to reduced-format sound films - Google Patents

Improvements to reduced-format sound films

Info

Publication number
FR972124A
FR972124A FR972124DA FR972124A FR 972124 A FR972124 A FR 972124A FR 972124D A FR972124D A FR 972124DA FR 972124 A FR972124 A FR 972124A
Authority
FR
France
Prior art keywords
reduced
sound films
format sound
format
films
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
Martin Harper
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 FR972124A publication Critical patent/FR972124A/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)
FR972124D 1938-01-04 1938-12-31 Improvements to reduced-format sound films Expired FR972124A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB972124X 1938-01-04

Publications (1)

Publication Number Publication Date
FR972124A true FR972124A (en) 1951-01-25

Family

ID=10820167

Family Applications (1)

Application Number Title Priority Date Filing Date
FR972124D Expired FR972124A (en) 1938-01-04 1938-12-31 Improvements to reduced-format sound films

Country Status (1)

Country Link
FR (1) FR972124A (en)

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