FR405273A - Appareil reproducteur du son - Google Patents

Appareil reproducteur du son

Info

Publication number
FR405273A
FR405273A FR405273A FR405273DA FR405273A FR 405273 A FR405273 A FR 405273A FR 405273 A FR405273 A FR 405273A FR 405273D A FR405273D A FR 405273DA FR 405273 A FR405273 A FR 405273A
Authority
FR
France
Prior art keywords
sound reproduction
reproduction system
sound
reproduction
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
FR405273A
Other languages
English (en)
French (fr)
Inventor
Willis Otis Casimir Ellis
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 FR405273A publication Critical patent/FR405273A/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; DEAF-AID SETS; 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)
  • Telephone Set Structure (AREA)
FR405273A 1909-03-30 1909-07-21 Appareil reproducteur du son Expired FR405273A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190907605T 1909-03-30

Publications (1)

Publication Number Publication Date
FR405273A true FR405273A (fr) 1909-12-24

Family

ID=32443206

Family Applications (1)

Application Number Title Priority Date Filing Date
FR405273A Expired FR405273A (fr) 1909-03-30 1909-07-21 Appareil reproducteur du son

Country Status (3)

Country Link
DE (1) DE223610C (enrdf_load_stackoverflow)
FR (1) FR405273A (enrdf_load_stackoverflow)
GB (1) GB190907605A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DE223610C (enrdf_load_stackoverflow)
GB190907605A (en) 1909-09-30

Similar Documents

Publication Publication Date Title
FR405273A (fr) Appareil reproducteur du son
FI3865A (fi) Gramofooni- äänikalvon parannus
FR403982A (fr) Cornet acoustique
FR386276A (fr) Cornet acoustique
FR406313A (fr) Machines reproductrices de sons
FR417729A (fr) Machine reproductrice de sons
FR419817A (fr) Membrane acoustique
FR410926A (fr) Phonographe
FR376092A (fr) Cornet acoustique
FR360613A (fr) Appareil reproducteur de sons
FR403666A (fr) Jouet électro-acoustique
FR350034A (fr) Appareils reproducteurs du son
FR489684A (fr) Amplificateur du son
CH49629A (de) Grammophon
FR380131A (fr) Acoustique haut-parleur
FR416171A (fr) Microphone
CH48526A (de) Mikrotelephon
CH49724A (de) Sprechscheibe
CA172013A (en) Sound reproducing device
FR430317A (fr) Avertisseur phonique à sirène
FR386218A (fr) Phonographe
FR388061A (fr) Phonographe
CH49343A (de) Telephon-Sprechtrichter
FR409211A (fr) Enregistreur
FR392334A (fr) Appareil phonographique