BE504207A - - Google Patents

Info

Publication number
BE504207A
BE504207A BE504207DA BE504207A BE 504207 A BE504207 A BE 504207A BE 504207D A BE504207D A BE 504207DA BE 504207 A BE504207 A BE 504207A
Authority
BE
Belgium
Application number
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.)
Publication of BE504207A publication Critical patent/BE504207A/xx

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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R17/06—Gramophone pick-ups using a stylus; Recorders using a stylus comprising two or more styli or transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
BE504207D 1950-07-24 BE504207A (US07321065-20080122-C00020.png)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1022443T 1950-07-24

Publications (1)

Publication Number Publication Date
BE504207A true BE504207A (US07321065-20080122-C00020.png)

Family

ID=9577627

Family Applications (1)

Application Number Title Priority Date Filing Date
BE504207D BE504207A (US07321065-20080122-C00020.png) 1950-07-24

Country Status (3)

Country Link
BE (1) BE504207A (US07321065-20080122-C00020.png)
CH (1) CH294052A (US07321065-20080122-C00020.png)
FR (1) FR1022443A (US07321065-20080122-C00020.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2977124A (en) * 1955-01-04 1961-03-28 Staar Marcel Jules Helene Phonograph apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2977124A (en) * 1955-01-04 1961-03-28 Staar Marcel Jules Helene Phonograph apparatus

Also Published As

Publication number Publication date
CH294052A (fr) 1953-10-31
FR1022443A (fr) 1953-03-04

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