FR694543A - Manufacturing process of photographic discs - Google Patents

Manufacturing process of photographic discs

Info

Publication number
FR694543A
FR694543A FR694543DA FR694543A FR 694543 A FR694543 A FR 694543A FR 694543D A FR694543D A FR 694543DA FR 694543 A FR694543 A FR 694543A
Authority
FR
France
Prior art keywords
manufacturing process
photographic
discs
photographic discs
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
Amable Vara Y De Rueda
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 FR694543A publication Critical patent/FR694543A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/68—Record carriers
    • G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
FR694543D 1929-05-14 1930-04-25 Manufacturing process of photographic discs Expired FR694543A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES694543X 1929-05-14

Publications (1)

Publication Number Publication Date
FR694543A true FR694543A (en) 1930-12-04

Family

ID=8246151

Family Applications (1)

Application Number Title Priority Date Filing Date
FR694543D Expired FR694543A (en) 1929-05-14 1930-04-25 Manufacturing process of photographic discs

Country Status (1)

Country Link
FR (1) FR694543A (en)

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