FR457479A - Double-sided synchronized disc and a phonograph for its use - Google Patents

Double-sided synchronized disc and a phonograph for its use

Info

Publication number
FR457479A
FR457479A FR457479DA FR457479A FR 457479 A FR457479 A FR 457479A FR 457479D A FR457479D A FR 457479DA FR 457479 A FR457479 A FR 457479A
Authority
FR
France
Prior art keywords
phonograph
double
sided
disc
synchronized disc
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
Emmanuel Boulanger
Jules Delaye
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.)
EMMANUEL BOULANGER
JULES DELAYE
Original Assignee
EMMANUEL BOULANGER
JULES DELAYE
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 EMMANUEL BOULANGER, JULES DELAYE filed Critical EMMANUEL BOULANGER
Application granted granted Critical
Publication of FR457479A publication Critical patent/FR457479A/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
    • G11B3/68—Record carriers
    • G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
FR457479D 1913-05-05 1913-05-05 Double-sided synchronized disc and a phonograph for its use Expired FR457479A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR457479T 1913-05-05

Publications (1)

Publication Number Publication Date
FR457479A true FR457479A (en) 1913-09-18

Family

ID=1497166

Family Applications (1)

Application Number Title Priority Date Filing Date
FR457479D Expired FR457479A (en) 1913-05-05 1913-05-05 Double-sided synchronized disc and a phonograph for its use

Country Status (1)

Country Link
FR (1) FR457479A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2537657A (en) * 1945-05-05 1951-01-09 Western Union Telegraph Co Disk type magnetic recordingreproducing apparatus
US2858374A (en) * 1952-12-18 1958-10-28 Columbia Broadcasting Syst Inc Phonograph record and reproducing apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2537657A (en) * 1945-05-05 1951-01-09 Western Union Telegraph Co Disk type magnetic recordingreproducing apparatus
US2858374A (en) * 1952-12-18 1958-10-28 Columbia Broadcasting Syst Inc Phonograph record and reproducing apparatus

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