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FR476943A - Relais téléphonique perfectionné - Google Patents

Relais téléphonique perfectionné

Info

Publication number
FR476943A
FR476943A FR476943A FR476943DA FR476943A FR 476943 A FR476943 A FR 476943A FR 476943 A FR476943 A FR 476943A FR 476943D A FR476943D A FR 476943DA FR 476943 A FR476943 A FR 476943A
Authority
FR
France
Prior art keywords
telephone relay
advanced telephone
advanced
relay
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
FR476943A
Other languages
English (en)
Inventor
Fabio Majorana
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 FR476943A publication Critical patent/FR476943A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
FR476943A 1913-04-30 1914-04-29 Relais téléphonique perfectionné Expired FR476943A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191310154T 1913-04-30

Publications (1)

Publication Number Publication Date
FR476943A true FR476943A (fr) 1915-09-09

Family

ID=32644577

Family Applications (1)

Application Number Title Priority Date Filing Date
FR476943A Expired FR476943A (fr) 1913-04-30 1914-04-29 Relais téléphonique perfectionné

Country Status (2)

Country Link
FR (1) FR476943A (fr)
GB (1) GB191310154A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8908600D0 (en) * 1989-04-15 1989-06-01 Woodward William H Linear actuator

Also Published As

Publication number Publication date
GB191310154A (en) 1913-08-14

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