FR340435A - Transmetteur téléphonique - Google Patents

Transmetteur téléphonique

Info

Publication number
FR340435A
FR340435A FR340435DA FR340435A FR 340435 A FR340435 A FR 340435A FR 340435D A FR340435D A FR 340435DA FR 340435 A FR340435 A FR 340435A
Authority
FR
France
Prior art keywords
telephone transmitter
telephone
transmitter
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
English (en)
Inventor
Gaston Houbigant
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 FR340435A publication Critical patent/FR340435A/fr
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
    • H04R21/00—Variable-resistance transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR340435D 1904-02-15 1904-02-15 Transmetteur téléphonique Expired FR340435A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR340435T 1904-02-15

Publications (1)

Publication Number Publication Date
FR340435A true FR340435A (fr) 1904-07-06

Family

ID=1389548

Family Applications (1)

Application Number Title Priority Date Filing Date
FR340435D Expired FR340435A (fr) 1904-02-15 1904-02-15 Transmetteur téléphonique

Country Status (1)

Country Link
FR (1) FR340435A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970804A (en) * 1974-03-25 1976-07-20 Brien Jerry O Electro-mechanical amplifier sound transducer
US5382039A (en) * 1993-05-24 1995-01-17 Hawker; Michael J. Suspension device for a seat of a bicycle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970804A (en) * 1974-03-25 1976-07-20 Brien Jerry O Electro-mechanical amplifier sound transducer
US5382039A (en) * 1993-05-24 1995-01-17 Hawker; Michael J. Suspension device for a seat of a bicycle

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