FR533219A - Device for reproducing sound waves - Google Patents

Device for reproducing sound waves

Info

Publication number
FR533219A
FR533219A FR533219DA FR533219A FR 533219 A FR533219 A FR 533219A FR 533219D A FR533219D A FR 533219DA FR 533219 A FR533219 A FR 533219A
Authority
FR
France
Prior art keywords
sound waves
reproducing sound
reproducing
waves
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
French (fr)
Inventor
Rudolf Mylo
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 FR533219A publication Critical patent/FR533219A/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
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/16—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by mechanical cutting, deforming or pressing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/04—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electric resistance; Record carriers therefor
FR533219D 1920-01-02 1920-12-28 Device for reproducing sound waves Expired FR533219A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE533219X 1920-01-02

Publications (1)

Publication Number Publication Date
FR533219A true FR533219A (en) 1922-02-25

Family

ID=6555922

Family Applications (1)

Application Number Title Priority Date Filing Date
FR533219D Expired FR533219A (en) 1920-01-02 1920-12-28 Device for reproducing sound waves

Country Status (2)

Country Link
FR (1) FR533219A (en)
GB (1) GB156217A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081383A (en) * 1959-10-30 1963-03-12 Panayotis C Dimitracopoulos Method and means for variable resistance recording

Also Published As

Publication number Publication date
GB156217A (en) 1921-09-15

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