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FR573433A - Improvements to receivers used in corded or wireless telephony - Google Patents

Improvements to receivers used in corded or wireless telephony

Info

Publication number
FR573433A
FR573433A FR573433DA FR573433A FR 573433 A FR573433 A FR 573433A FR 573433D A FR573433D A FR 573433DA FR 573433 A FR573433 A FR 573433A
Authority
FR
France
Prior art keywords
corded
wireless telephony
receivers used
receivers
telephony
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
Paul Brunet
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 FR573433A publication Critical patent/FR573433A/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)
FR573433D 1923-02-02 1923-02-02 Improvements to receivers used in corded or wireless telephony Expired FR573433A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR573433T 1923-02-02

Publications (1)

Publication Number Publication Date
FR573433A true FR573433A (en) 1924-06-23

Family

ID=8951961

Family Applications (1)

Application Number Title Priority Date Filing Date
FR573433D Expired FR573433A (en) 1923-02-02 1923-02-02 Improvements to receivers used in corded or wireless telephony

Country Status (1)

Country Link
FR (1) FR573433A (en)

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