FR436013A - Dispositif de renforcement et de transmission de sons, applicable aux machines parlantes et autres similaires - Google Patents

Dispositif de renforcement et de transmission de sons, applicable aux machines parlantes et autres similaires

Info

Publication number
FR436013A
FR436013A FR436013DA FR436013A FR 436013 A FR436013 A FR 436013A FR 436013D A FR436013D A FR 436013DA FR 436013 A FR436013 A FR 436013A
Authority
FR
France
Prior art keywords
strengthening
applicable
transmitting sound
talking machines
talking
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
English (en)
Inventor
Fritz Hildebrand
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 FR436013A publication Critical patent/FR436013A/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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R21/00—Variable-resistance transducers
    • H04R21/04—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR436013D 1911-11-06 1911-11-06 Dispositif de renforcement et de transmission de sons, applicable aux machines parlantes et autres similaires Expired FR436013A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR436013T 1911-11-06

Publications (1)

Publication Number Publication Date
FR436013A true FR436013A (fr) 1912-03-15

Family

ID=1477756

Family Applications (1)

Application Number Title Priority Date Filing Date
FR436013D Expired FR436013A (fr) 1911-11-06 1911-11-06 Dispositif de renforcement et de transmission de sons, applicable aux machines parlantes et autres similaires

Country Status (1)

Country Link
FR (1) FR436013A (fr)

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