FR649391A - Improvements in methods and devices used for sound reproduction - Google Patents

Improvements in methods and devices used for sound reproduction

Info

Publication number
FR649391A
FR649391A FR649391DA FR649391A FR 649391 A FR649391 A FR 649391A FR 649391D A FR649391D A FR 649391DA FR 649391 A FR649391 A FR 649391A
Authority
FR
France
Prior art keywords
methods
devices used
sound reproduction
reproduction
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)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR649391A publication Critical patent/FR649391A/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
    • G11B31/00—Arrangements for the associated working of recording or reproducing apparatus with related apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
FR649391D 1927-02-01 1927-12-31 Improvements in methods and devices used for sound reproduction Expired FR649391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB649391X 1927-02-01

Publications (1)

Publication Number Publication Date
FR649391A true FR649391A (en) 1928-12-21

Family

ID=10490024

Family Applications (1)

Application Number Title Priority Date Filing Date
FR649391D Expired FR649391A (en) 1927-02-01 1927-12-31 Improvements in methods and devices used for sound reproduction

Country Status (1)

Country Link
FR (1) FR649391A (en)

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