BE524124A - - Google Patents

Info

Publication number
BE524124A
BE524124A BE524124DA BE524124A BE 524124 A BE524124 A BE 524124A BE 524124D A BE524124D A BE 524124DA BE 524124 A BE524124 A BE 524124A
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 BE524124A publication Critical patent/BE524124A/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/127—Non-planar diaphragms or cones dome-shaped
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/58—Anti-side-tone circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
BE524124D 1952-11-07 BE524124A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE321708X 1952-11-07

Publications (1)

Publication Number Publication Date
BE524124A true BE524124A (enrdf_load_html_response)

Family

ID=6162943

Family Applications (1)

Application Number Title Priority Date Filing Date
BE524124D BE524124A (enrdf_load_html_response) 1952-11-07

Country Status (4)

Country Link
BE (1) BE524124A (enrdf_load_html_response)
CH (1) CH321708A (enrdf_load_html_response)
FR (1) FR1086665A (enrdf_load_html_response)
NL (2) NL182555B (enrdf_load_html_response)

Also Published As

Publication number Publication date
CH321708A (de) 1957-05-15
NL182555B (nl)
FR1086665A (fr) 1955-02-15
NL86513C (enrdf_load_html_response)

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