[go: up one dir, main page]

FR625445A - Loudspeaker telephone reception device - Google Patents

Loudspeaker telephone reception device

Info

Publication number
FR625445A
FR625445A FR625445DA FR625445A FR 625445 A FR625445 A FR 625445A FR 625445D A FR625445D A FR 625445DA FR 625445 A FR625445 A FR 625445A
Authority
FR
France
Prior art keywords
reception device
telephone reception
loudspeaker telephone
loudspeaker
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
Henri Lorry
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 FR625445A publication Critical patent/FR625445A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR625445D 1926-10-18 1926-10-18 Loudspeaker telephone reception device Expired FR625445A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR625445T 1926-10-18

Publications (1)

Publication Number Publication Date
FR625445A true FR625445A (en) 1927-08-10

Family

ID=8987730

Family Applications (1)

Application Number Title Priority Date Filing Date
FR625445D Expired FR625445A (en) 1926-10-18 1926-10-18 Loudspeaker telephone reception device

Country Status (1)

Country Link
FR (1) FR625445A (en)

Similar Documents

Publication Publication Date Title
FR711667A (en) Electro-acoustic delay device
FR32649E (en) Electro-dynamic device that can be used as microphone or speaker
FR625445A (en) Loudspeaker telephone reception device
FR626962A (en) Vacuum cradle
FR590514A (en) Telephone device
FR621195A (en) Silent phone device
FR30070E (en) Vibrating membrane for telephone devices
FR29748E (en) Vibrating membrane for telephone devices
FR639302A (en) Speaker device
FR695592A (en) Acoustic device for loudspeakers
FR628753A (en) Telephone receiver
FR626260A (en) Telephone receiver
FR595268A (en) Device for capillary waves
FR597785A (en) Cabinet for wireless telephone device
FR573000A (en) Loudspeaker for telephone device
FR618338A (en) Improvements to telephone reception devices
FR630835A (en) Antiseptic device for telephone use
FR587400A (en) Loudspeaker device for telephone devices
FR627370A (en) Telephone or microphone capsule
FR599578A (en) Receiver device for wireless telephony
FR605606A (en) Telephone device
FR625311A (en) Stroboscopy device
FR580073A (en) Telephone apparatus receiver isolation device
FR618265A (en) Microphone advertising device
FR619696A (en) Membrane for talking devices