BE348253A - - Google Patents

Info

Publication number
BE348253A
BE348253A BE348253DA BE348253A BE 348253 A BE348253 A BE 348253A BE 348253D A BE348253D A BE 348253DA BE 348253 A BE348253 A BE 348253A
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 BE348253A publication Critical patent/BE348253A/xx

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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/12—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
BE348253D 1927-02-17 BE348253A (ja�@�@)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR629363T 1927-02-17
FR34325T 1927-10-14

Publications (1)

Publication Number Publication Date
BE348253A true BE348253A (ja�@�@)

Family

ID=26182652

Family Applications (1)

Application Number Title Priority Date Filing Date
BE348253D BE348253A (ja�@�@) 1927-02-17

Country Status (3)

Country Link
BE (1) BE348253A (ja�@�@)
FR (1) FR34325E (ja�@�@)
GB (1) GB298643A (ja�@�@)

Also Published As

Publication number Publication date
FR34325E (fr) 1929-05-04
GB298643A (en) 1929-10-03

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