FR891898A - Sound recording process - Google Patents

Sound recording process

Info

Publication number
FR891898A
FR891898A FR891898DA FR891898A FR 891898 A FR891898 A FR 891898A FR 891898D A FR891898D A FR 891898DA FR 891898 A FR891898 A FR 891898A
Authority
FR
France
Prior art keywords
recording process
sound recording
sound
recording
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.)
Zeiss Ikon AG
Original Assignee
Zeiss Ikon AG
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 Zeiss Ikon AG filed Critical Zeiss Ikon AG
Application granted granted Critical
Publication of FR891898A publication Critical patent/FR891898A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/12—Cinematrographic processes of taking pictures or printing
    • G03C5/14—Cinematrographic processes of taking pictures or printing combined with sound-recording

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR891898D 1942-04-13 1943-03-03 Sound recording process Expired FR891898A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE891898X 1942-04-13

Publications (1)

Publication Number Publication Date
FR891898A true FR891898A (en) 1944-03-22

Family

ID=6846059

Family Applications (1)

Application Number Title Priority Date Filing Date
FR891898D Expired FR891898A (en) 1942-04-13 1943-03-03 Sound recording process

Country Status (1)

Country Link
FR (1) FR891898A (en)

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