FR743154A - - Google Patents

Info

Publication number
FR743154A
FR743154A FR743154DA FR743154A FR 743154 A FR743154 A FR 743154A FR 743154D A FR743154D A FR 743154DA FR 743154 A FR743154 A FR 743154A
Authority
FR
France
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
Publication date
Application granted granted Critical
Publication of FR743154A publication Critical patent/FR743154A/fr
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
FR743154D Expired FR743154A (fr)

Publications (1)

Publication Number Publication Date
FR743154A true FR743154A (fr) 1933-03-25

Family

ID=1547452

Family Applications (1)

Application Number Title Priority Date Filing Date
FR743154D Expired FR743154A (fr)

Country Status (1)

Country Link
FR (1) FR743154A (fr)

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