FR751047A - Perfectionnements aux pick up - Google Patents

Perfectionnements aux pick up

Info

Publication number
FR751047A
FR751047A FR751047DA FR751047A FR 751047 A FR751047 A FR 751047A FR 751047D A FR751047D A FR 751047DA FR 751047 A FR751047 A FR 751047A
Authority
FR
France
Prior art keywords
refinements
pick
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
Alexis Guerbilsky
Nicolas Farkas
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 FR751047A publication Critical patent/FR751047A/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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR751047D 1933-02-17 1933-02-17 Perfectionnements aux pick up Expired FR751047A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR751047T 1933-02-17

Publications (1)

Publication Number Publication Date
FR751047A true FR751047A (fr) 1933-08-25

Family

ID=9153495

Family Applications (1)

Application Number Title Priority Date Filing Date
FR751047D Expired FR751047A (fr) 1933-02-17 1933-02-17 Perfectionnements aux pick up

Country Status (1)

Country Link
FR (1) FR751047A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2564136A (en) * 1943-03-04 1951-08-14 Hartford Nat Bank & Trust Co Corundum crystal recording or reproducing member
US2577149A (en) * 1947-07-18 1951-12-04 Union Carbide & Carbon Corp Corundum phonograph needle and sound reproducing apparatus embodying same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2564136A (en) * 1943-03-04 1951-08-14 Hartford Nat Bank & Trust Co Corundum crystal recording or reproducing member
US2577149A (en) * 1947-07-18 1951-12-04 Union Carbide & Carbon Corp Corundum phonograph needle and sound reproducing apparatus embodying same

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