BE379817A - - Google Patents

Info

Publication number
BE379817A
BE379817A BE379817DA BE379817A BE 379817 A BE379817 A BE 379817A BE 379817D A BE379817D A BE 379817DA BE 379817 A BE379817 A BE 379817A
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 BE379817A publication Critical patent/BE379817A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • 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
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
BE379817D 1930-05-14 BE379817A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US452154A US1905704A (en) 1930-05-14 1930-05-14 Acoustic device

Publications (1)

Publication Number Publication Date
BE379817A true BE379817A (enrdf_load_stackoverflow)

Family

ID=23795266

Family Applications (1)

Application Number Title Priority Date Filing Date
BE379817D BE379817A (enrdf_load_stackoverflow) 1930-05-14

Country Status (3)

Country Link
US (1) US1905704A (enrdf_load_stackoverflow)
BE (1) BE379817A (enrdf_load_stackoverflow)
FR (1) FR716994A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR716994A (fr) 1931-12-30
US1905704A (en) 1933-04-25

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