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FR858403A - Récepteur téléphonique amovible - Google Patents

Récepteur téléphonique amovible

Info

Publication number
FR858403A
FR858403A FR858403DA FR858403A FR 858403 A FR858403 A FR 858403A FR 858403D A FR858403D A FR 858403DA FR 858403 A FR858403 A FR 858403A
Authority
FR
France
Prior art keywords
telephone receiver
detachable telephone
detachable
receiver
telephone
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)
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.)
Societe des Telephones Ericsson SA
Original Assignee
Societe des Telephones Ericsson SA
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 Societe des Telephones Ericsson SA filed Critical Societe des Telephones Ericsson SA
Application granted granted Critical
Publication of FR858403A publication Critical patent/FR858403A/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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
    • H04R13/02—Telephone receivers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR858403D 1939-04-25 1939-04-25 Récepteur téléphonique amovible Expired FR858403A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR858403T 1939-04-25

Publications (1)

Publication Number Publication Date
FR858403A true FR858403A (fr) 1940-11-25

Family

ID=9329938

Family Applications (1)

Application Number Title Priority Date Filing Date
FR858403D Expired FR858403A (fr) 1939-04-25 1939-04-25 Récepteur téléphonique amovible

Country Status (1)

Country Link
FR (1) FR858403A (fr)

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