FR556061A - adjustable phone earpiece - Google Patents

adjustable phone earpiece

Info

Publication number
FR556061A
FR556061A FR556061DA FR556061A FR 556061 A FR556061 A FR 556061A FR 556061D A FR556061D A FR 556061DA FR 556061 A FR556061 A FR 556061A
Authority
FR
France
Prior art keywords
phone earpiece
adjustable
adjustable phone
earpiece
phone
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
Antoine Bonnefont
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 FR556061A publication Critical patent/FR556061A/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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/22—Clamping rim of diaphragm or cone against seating

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR556061D 1922-09-09 1922-09-09 adjustable phone earpiece Expired FR556061A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR556061T 1922-09-09

Publications (1)

Publication Number Publication Date
FR556061A true FR556061A (en) 1923-07-11

Family

ID=8939871

Family Applications (1)

Application Number Title Priority Date Filing Date
FR556061D Expired FR556061A (en) 1922-09-09 1922-09-09 adjustable phone earpiece

Country Status (1)

Country Link
FR (1) FR556061A (en)

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