FR331226A - Improvements to phonographs - Google Patents

Improvements to phonographs

Info

Publication number
FR331226A
FR331226A FR331226DA FR331226A FR 331226 A FR331226 A FR 331226A FR 331226D A FR331226D A FR 331226DA FR 331226 A FR331226 A FR 331226A
Authority
FR
France
Prior art keywords
phonographs
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.)
L GAUMONT ET CIE SOC
Original Assignee
L GAUMONT ET CIE SOC
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 L GAUMONT ET CIE SOC filed Critical L GAUMONT ET CIE SOC
Application granted granted Critical
Publication of FR331226A publication Critical patent/FR331226A/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
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR331226D 1903-04-15 1903-04-15 Improvements to phonographs Expired FR331226A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR331226T 1903-04-15

Publications (1)

Publication Number Publication Date
FR331226A true FR331226A (en) 1903-09-02

Family

ID=1380954

Family Applications (1)

Application Number Title Priority Date Filing Date
FR331226D Expired FR331226A (en) 1903-04-15 1903-04-15 Improvements to phonographs

Country Status (1)

Country Link
FR (1) FR331226A (en)

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