FR31600E - Improvements to telephone receivers - Google Patents

Improvements to telephone receivers

Info

Publication number
FR31600E
FR31600E FR31600DA FR31600E FR 31600 E FR31600 E FR 31600E FR 31600D A FR31600D A FR 31600DA FR 31600 E FR31600 E FR 31600E
Authority
FR
France
Prior art keywords
telephone receivers
receivers
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
French (fr)
Inventor
Albert-Louis Bitton
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 FR31600E publication Critical patent/FR31600E/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
    • H04R11/02—Loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR31600D 1925-11-10 1925-11-10 Improvements to telephone receivers Expired FR31600E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR31600T 1925-11-10

Publications (1)

Publication Number Publication Date
FR31600E true FR31600E (en) 1927-03-17

Family

ID=8669397

Family Applications (2)

Application Number Title Priority Date Filing Date
FR615276D Expired FR615276A (en) 1925-11-10 1925-09-14 Improvements to telephone receivers
FR31600D Expired FR31600E (en) 1925-11-10 1925-11-10 Improvements to telephone receivers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR615276D Expired FR615276A (en) 1925-11-10 1925-09-14 Improvements to telephone receivers

Country Status (1)

Country Link
FR (2) FR615276A (en)

Also Published As

Publication number Publication date
FR615276A (en) 1927-01-04

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