FR660646A - Fixed diaphragm phonograph - Google Patents

Fixed diaphragm phonograph

Info

Publication number
FR660646A
FR660646A FR660646DA FR660646A FR 660646 A FR660646 A FR 660646A FR 660646D A FR660646D A FR 660646DA FR 660646 A FR660646 A FR 660646A
Authority
FR
France
Prior art keywords
phonograph
fixed diaphragm
diaphragm
fixed
diaphragm phonograph
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.)
Parlophone Records Ltd
Original Assignee
Gramophone Co Ltd
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 Gramophone Co Ltd filed Critical Gramophone Co Ltd
Application granted granted Critical
Publication of FR660646A publication Critical patent/FR660646A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR660646D 1927-10-26 1928-09-19 Fixed diaphragm phonograph Expired FR660646A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB660646X 1927-10-26

Publications (1)

Publication Number Publication Date
FR660646A true FR660646A (en) 1929-07-13

Family

ID=10490885

Family Applications (1)

Application Number Title Priority Date Filing Date
FR660646D Expired FR660646A (en) 1927-10-26 1928-09-19 Fixed diaphragm phonograph

Country Status (1)

Country Link
FR (1) FR660646A (en)

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