FR818375A - Photophonic readers - Google Patents

Photophonic readers

Info

Publication number
FR818375A
FR818375A FR818375DA FR818375A FR 818375 A FR818375 A FR 818375A FR 818375D A FR818375D A FR 818375DA FR 818375 A FR818375 A FR 818375A
Authority
FR
France
Prior art keywords
photophonic
readers
photophonic readers
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 FR818375A publication Critical patent/FR818375A/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
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/26—Driving record carriers by members acting directly or indirectly thereon
    • G11B15/34—Driving record carriers by members acting directly or indirectly thereon through non-slip drive means, e.g. sprocket
FR818375D 1936-05-08 1937-02-25 Photophonic readers Expired FR818375A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE818375X 1936-05-08

Publications (1)

Publication Number Publication Date
FR818375A true FR818375A (en) 1937-09-24

Family

ID=6735420

Family Applications (1)

Application Number Title Priority Date Filing Date
FR818375D Expired FR818375A (en) 1936-05-08 1937-02-25 Photophonic readers

Country Status (1)

Country Link
FR (1) FR818375A (en)

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