FR665261A - Appareil pour la reproduction du son - Google Patents

Appareil pour la reproduction du son

Info

Publication number
FR665261A
FR665261A FR665261DA FR665261A FR 665261 A FR665261 A FR 665261A FR 665261D A FR665261D A FR 665261DA FR 665261 A FR665261 A FR 665261A
Authority
FR
France
Prior art keywords
sound reproduction
reproduction
sound
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)
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Application granted granted Critical
Publication of FR665261A publication Critical patent/FR665261A/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
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR665261D 1928-06-23 1928-11-29 Appareil pour la reproduction du son Expired FR665261A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US564713XA 1928-06-23 1928-06-23

Publications (1)

Publication Number Publication Date
FR665261A true FR665261A (fr) 1929-09-17

Family

ID=22004620

Family Applications (1)

Application Number Title Priority Date Filing Date
FR665261D Expired FR665261A (fr) 1928-06-23 1928-11-29 Appareil pour la reproduction du son

Country Status (2)

Country Link
DE (1) DE564713C (fr)
FR (1) FR665261A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE751096C (de) * 1935-04-12 1953-02-23 Telefunken Gmbh Elektrischer Tonabnehmer
DE742169C (de) * 1939-07-19 1943-11-24 Oswald Ritter Magnetischer Tonabnehmer

Also Published As

Publication number Publication date
DE564713C (de) 1932-11-22

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