FR70526E - écouteur téléphonique - Google Patents

écouteur téléphonique

Info

Publication number
FR70526E
FR70526E FR70526DA FR70526E FR 70526 E FR70526 E FR 70526E FR 70526D A FR70526D A FR 70526DA FR 70526 E FR70526 E FR 70526E
Authority
FR
France
Prior art keywords
phone earpiece
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
English (en)
Inventor
Pierre-Georges Gillet
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 FR70526E publication Critical patent/FR70526E/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
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/06—Telephone receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR70526D 1956-02-01 1956-07-16 écouteur téléphonique Expired FR70526E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1142075T 1956-02-01

Publications (1)

Publication Number Publication Date
FR70526E true FR70526E (fr) 1959-05-29

Family

ID=9643048

Family Applications (2)

Application Number Title Priority Date Filing Date
FR1142075D Expired FR1142075A (fr) 1956-02-01 1956-02-01 écouteur téléphonique
FR70526D Expired FR70526E (fr) 1956-02-01 1956-07-16 écouteur téléphonique

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR1142075D Expired FR1142075A (fr) 1956-02-01 1956-02-01 écouteur téléphonique

Country Status (1)

Country Link
FR (2) FR1142075A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002863A (en) * 1974-12-02 1977-01-11 Harmen Broersma Transducer and method of making same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002863A (en) * 1974-12-02 1977-01-11 Harmen Broersma Transducer and method of making same

Also Published As

Publication number Publication date
FR1142075A (fr) 1957-09-13

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