FR453174A - Perfectionnements aux reproducteurs de sons - Google Patents

Perfectionnements aux reproducteurs de sons

Info

Publication number
FR453174A
FR453174A FR453174DA FR453174A FR 453174 A FR453174 A FR 453174A FR 453174D A FR453174D A FR 453174DA FR 453174 A FR453174 A FR 453174A
Authority
FR
France
Prior art keywords
sound reproducers
reproducers
sound
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
English (en)
Inventor
Thomas Knight Barnard
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR453174A publication Critical patent/FR453174A/fr
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
FR453174D 1912-01-15 1913-01-14 Perfectionnements aux reproducteurs de sons Expired FR453174A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB453174X 1912-01-15

Publications (1)

Publication Number Publication Date
FR453174A true FR453174A (fr) 1913-06-02

Family

ID=1493311

Family Applications (1)

Application Number Title Priority Date Filing Date
FR453174D Expired FR453174A (fr) 1912-01-15 1913-01-14 Perfectionnements aux reproducteurs de sons

Country Status (1)

Country Link
FR (1) FR453174A (fr)

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