FR1142075A - phone earpiece - Google Patents

phone earpiece

Info

Publication number
FR1142075A
FR1142075A FR1142075DA FR1142075A FR 1142075 A FR1142075 A FR 1142075A FR 1142075D A FR1142075D A FR 1142075DA FR 1142075 A FR1142075 A FR 1142075A
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
French (fr)
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 FR1142075A publication Critical patent/FR1142075A/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
    • 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; DEAF-AID SETS; 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)
FR1142075D 1956-02-01 1956-02-01 phone earpiece Expired FR1142075A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR1142075A true FR1142075A (en) 1957-09-13

Family

ID=9643048

Family Applications (2)

Application Number Title Priority Date Filing Date
FR1142075D Expired FR1142075A (en) 1956-02-01 1956-02-01 phone earpiece
FR70526D Expired FR70526E (en) 1956-02-01 1956-07-16 phone earpiece

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR70526D Expired FR70526E (en) 1956-02-01 1956-07-16 phone earpiece

Country Status (1)

Country Link
FR (2) FR1142075A (en)

Families Citing this family (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
FR70526E (en) 1959-05-29

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