FR677670A - Photographic disc and its manufacturing process - Google Patents

Photographic disc and its manufacturing process

Info

Publication number
FR677670A
FR677670A FR677670DA FR677670A FR 677670 A FR677670 A FR 677670A FR 677670D A FR677670D A FR 677670DA FR 677670 A FR677670 A FR 677670A
Authority
FR
France
Prior art keywords
manufacturing process
photographic disc
photographic
disc
manufacturing
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
Ernest Prior
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 FR677670A publication Critical patent/FR677670A/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
    • G03C1/00—Photosensitive materials
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR677670D 1929-07-01 1929-07-01 Photographic disc and its manufacturing process Expired FR677670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR677670T 1929-07-01

Publications (1)

Publication Number Publication Date
FR677670A true FR677670A (en) 1930-03-13

Family

ID=9020608

Family Applications (1)

Application Number Title Priority Date Filing Date
FR677670D Expired FR677670A (en) 1929-07-01 1929-07-01 Photographic disc and its manufacturing process

Country Status (1)

Country Link
FR (1) FR677670A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247298A (en) * 1960-06-08 1966-04-19 Utiger Heinrich Method for the production of sound records

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247298A (en) * 1960-06-08 1966-04-19 Utiger Heinrich Method for the production of sound records

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