FR552017A - Reproductive diaphragm for phonographs - Google Patents

Reproductive diaphragm for phonographs

Info

Publication number
FR552017A
FR552017A FR552017DA FR552017A FR 552017 A FR552017 A FR 552017A FR 552017D A FR552017D A FR 552017DA FR 552017 A FR552017 A FR 552017A
Authority
FR
France
Prior art keywords
phonographs
reproductive
diaphragm
reproductive diaphragm
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.)
Societe des Etablissements Gaumont
Original Assignee
Societe des Etablissements Gaumont
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 Societe des Etablissements Gaumont filed Critical Societe des Etablissements Gaumont
Application granted granted Critical
Publication of FR552017A publication Critical patent/FR552017A/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; ELECTRIC HEARING AIDS; 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)
FR552017D 1921-09-29 1921-09-29 Reproductive diaphragm for phonographs Expired FR552017A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR552017T 1921-09-29

Publications (1)

Publication Number Publication Date
FR552017A true FR552017A (en) 1923-04-19

Family

ID=8937274

Family Applications (1)

Application Number Title Priority Date Filing Date
FR552017D Expired FR552017A (en) 1921-09-29 1921-09-29 Reproductive diaphragm for phonographs

Country Status (1)

Country Link
FR (1) FR552017A (en)

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