FR32838E - High sensitivity telephone receiver - Google Patents

High sensitivity telephone receiver

Info

Publication number
FR32838E
FR32838E FR32838DA FR32838E FR 32838 E FR32838 E FR 32838E FR 32838D A FR32838D A FR 32838DA FR 32838 E FR32838 E FR 32838E
Authority
FR
France
Prior art keywords
high sensitivity
telephone receiver
telephone
receiver
sensitivity
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
Marius Ramassot
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 FR32838E publication Critical patent/FR32838E/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
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
    • 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)
FR32838D 1926-07-19 1926-07-19 High sensitivity telephone receiver Expired FR32838E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR32838T 1926-07-19

Publications (1)

Publication Number Publication Date
FR32838E true FR32838E (en) 1928-02-29

Family

ID=8670518

Family Applications (3)

Application Number Title Priority Date Filing Date
FR34733D Expired FR34733E (en) 1926-07-19
FR625274D Expired FR625274A (en) 1926-07-19 1926-03-03 High sensitivity telephone receiver
FR32838D Expired FR32838E (en) 1926-07-19 1926-07-19 High sensitivity telephone receiver

Family Applications Before (2)

Application Number Title Priority Date Filing Date
FR34733D Expired FR34733E (en) 1926-07-19
FR625274D Expired FR625274A (en) 1926-07-19 1926-03-03 High sensitivity telephone receiver

Country Status (1)

Country Link
FR (3) FR625274A (en)

Also Published As

Publication number Publication date
FR625274A (en) 1927-08-06
FR34733E (en) 1929-09-19

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