FR27607E - Improvements to diaphragms for speaking machines - Google Patents

Improvements to diaphragms for speaking machines

Info

Publication number
FR27607E
FR27607E FR27607DA FR27607E FR 27607 E FR27607 E FR 27607E FR 27607D A FR27607D A FR 27607DA FR 27607 E FR27607 E FR 27607E
Authority
FR
France
Prior art keywords
diaphragms
speaking machines
speaking
machines
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
Dominique Di Natale
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 FR27607E publication Critical patent/FR27607E/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
FR27607D 1923-03-28 1923-03-28 Improvements to diaphragms for speaking machines Expired FR27607E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR27607T 1923-03-28

Publications (1)

Publication Number Publication Date
FR27607E true FR27607E (en) 1924-08-04

Family

ID=8665897

Family Applications (1)

Application Number Title Priority Date Filing Date
FR27607D Expired FR27607E (en) 1923-03-28 1923-03-28 Improvements to diaphragms for speaking machines

Country Status (1)

Country Link
FR (1) FR27607E (en)

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