BE503352A - - Google Patents

Info

Publication number
BE503352A
BE503352A BE503352DA BE503352A BE 503352 A BE503352 A BE 503352A BE 503352D A BE503352D A BE 503352DA BE 503352 A BE503352 A BE 503352A
Authority
BE
Belgium
Prior art keywords
cover
protective cover
threaded rod
spherical
circular
Prior art date
Application number
Other languages
English (en)
French (fr)
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 BE503352A publication Critical patent/BE503352A/fr

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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/021—Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Casings For Electric Apparatus (AREA)
BE503352D 1950-05-20 BE503352A (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1049337X 1950-05-20

Publications (1)

Publication Number Publication Date
BE503352A true BE503352A (cs)

Family

ID=19867827

Family Applications (1)

Application Number Title Priority Date Filing Date
BE503352D BE503352A (cs) 1950-05-20

Country Status (1)

Country Link
BE (1) BE503352A (cs)

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