FR563069A - Improvements to recording discs for talking machines - Google Patents

Improvements to recording discs for talking machines

Info

Publication number
FR563069A
FR563069A FR563069DA FR563069A FR 563069 A FR563069 A FR 563069A FR 563069D A FR563069D A FR 563069DA FR 563069 A FR563069 A FR 563069A
Authority
FR
France
Prior art keywords
recording discs
talking machines
talking
machines
discs
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
Victor Hugo Emerson
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 FR563069A publication Critical patent/FR563069A/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
    • G11B3/72—Groove formations, e.g. run-in groove, run-out groove
    • 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
    • G11B3/80—Record carriers incorporating subsidiary guide means for heads, other than modulated grooves; Part-formed unmodulated grooves for conversion into transducing grooves
FR563069D 1923-03-05 1923-03-05 Improvements to recording discs for talking machines Expired FR563069A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR563069T 1923-03-05

Publications (1)

Publication Number Publication Date
FR563069A true FR563069A (en) 1923-11-26

Family

ID=8944751

Family Applications (1)

Application Number Title Priority Date Filing Date
FR563069D Expired FR563069A (en) 1923-03-05 1923-03-05 Improvements to recording discs for talking machines

Country Status (1)

Country Link
FR (1) FR563069A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1297885B (en) * 1968-03-27 1969-06-19 Rabe Erich Method and device for cutting records

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1297885B (en) * 1968-03-27 1969-06-19 Rabe Erich Method and device for cutting records

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