FR718036A - Improvements in devices for recording and reproducing sound - Google Patents

Improvements in devices for recording and reproducing sound

Info

Publication number
FR718036A
FR718036A FR718036DA FR718036A FR 718036 A FR718036 A FR 718036A FR 718036D A FR718036D A FR 718036DA FR 718036 A FR718036 A FR 718036A
Authority
FR
France
Prior art keywords
recording
devices
reproducing sound
reproducing
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
French (fr)
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 FR718036A publication Critical patent/FR718036A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/12—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Peptides Or Proteins (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Nuclear Medicine (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
FR718036D 1930-06-06 1931-06-02 Improvements in devices for recording and reproducing sound Expired FR718036A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US459586A US1947164A (en) 1930-06-06 1930-06-06 Phonograph reproducer

Publications (1)

Publication Number Publication Date
FR718036A true FR718036A (en) 1932-01-18

Family

ID=23825384

Family Applications (1)

Application Number Title Priority Date Filing Date
FR718036D Expired FR718036A (en) 1930-06-06 1931-06-02 Improvements in devices for recording and reproducing sound

Country Status (3)

Country Link
US (1) US1947164A (en)
FR (1) FR718036A (en)
GB (1) GB388729A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE896568C (en) * 1941-06-05 1953-11-12 Grammophon G M B H Deutsche Pickups for records
US3766330A (en) * 1972-04-28 1973-10-16 Aero Service Corp Disc recording stylus driver

Also Published As

Publication number Publication date
US1947164A (en) 1934-02-13
GB388729A (en) 1933-03-02

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