FR669406A - Improvements to diaphragms for phonographs or other similar applications - Google Patents

Improvements to diaphragms for phonographs or other similar applications

Info

Publication number
FR669406A
FR669406A FR669406DA FR669406A FR 669406 A FR669406 A FR 669406A FR 669406D A FR669406D A FR 669406DA FR 669406 A FR669406 A FR 669406A
Authority
FR
France
Prior art keywords
phonographs
diaphragms
similar applications
applications
similar
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
Albert-Jean Capelle
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 FR669406A publication Critical patent/FR669406A/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
    • G11B3/44—Styli, e.g. sapphire, diamond
    • G11B3/46—Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank
FR669406D 1929-02-09 1929-02-09 Improvements to diaphragms for phonographs or other similar applications Expired FR669406A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR669406T 1929-02-09

Publications (1)

Publication Number Publication Date
FR669406A true FR669406A (en) 1929-11-15

Family

ID=9015705

Family Applications (1)

Application Number Title Priority Date Filing Date
FR669406D Expired FR669406A (en) 1929-02-09 1929-02-09 Improvements to diaphragms for phonographs or other similar applications

Country Status (1)

Country Link
FR (1) FR669406A (en)

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