FR619696A - Membrane for talking devices - Google Patents

Membrane for talking devices

Info

Publication number
FR619696A
FR619696A FR619696DA FR619696A FR 619696 A FR619696 A FR 619696A FR 619696D A FR619696D A FR 619696DA FR 619696 A FR619696 A FR 619696A
Authority
FR
France
Prior art keywords
membrane
talking devices
talking
devices
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
Leon-Ferdinand Thomsen
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 FR619696A publication Critical patent/FR619696A/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)
FR619696D 1926-07-26 1926-07-26 Membrane for talking devices Expired FR619696A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR619696T 1926-07-26

Publications (1)

Publication Number Publication Date
FR619696A true FR619696A (en) 1927-04-07

Family

ID=8983864

Family Applications (2)

Application Number Title Priority Date Filing Date
FR619696D Expired FR619696A (en) 1926-07-26 1926-07-26 Membrane for talking devices
FR32761D Expired FR32761E (en) 1926-07-26 1926-12-21 Membrane for talking devices

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR32761D Expired FR32761E (en) 1926-07-26 1926-12-21 Membrane for talking devices

Country Status (1)

Country Link
FR (2) FR619696A (en)

Also Published As

Publication number Publication date
FR32761E (en) 1928-02-28

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