FR340652A - Receiver for audio phone - Google Patents

Receiver for audio phone

Info

Publication number
FR340652A
FR340652A FR340652DA FR340652A FR 340652 A FR340652 A FR 340652A FR 340652D A FR340652D A FR 340652DA FR 340652 A FR340652 A FR 340652A
Authority
FR
France
Prior art keywords
receiver
audio phone
audio
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
Hermann George Pape
Edward John Higgins
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR340652A publication Critical patent/FR340652A/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
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/02—Transducers using more than one principle simultaneously

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR340652D 1904-02-23 1904-02-23 Receiver for audio phone Expired FR340652A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR340652T 1904-02-23

Publications (1)

Publication Number Publication Date
FR340652A true FR340652A (en) 1904-07-13

Family

ID=1389754

Family Applications (1)

Application Number Title Priority Date Filing Date
FR340652D Expired FR340652A (en) 1904-02-23 1904-02-23 Receiver for audio phone

Country Status (1)

Country Link
FR (1) FR340652A (en)

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