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 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BE524124A true BE524124A (en)

Family

ID=6162943

Family Applications (1)

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

Country Status (4)

Country Link
BE (1) BE524124A (en)
CH (1) CH321708A (en)
FR (1) FR1086665A (en)
NL (2) NL86513C (en)

Also Published As

Publication number Publication date
FR1086665A (en) 1955-02-15
NL182555B (en)
CH321708A (en) 1957-05-15
NL86513C (en)

Similar Documents

Publication Publication Date Title
BE519488A (en)
BE507405A (en)
BE508969A (en)
BE511207A (en)
BE512796A (en)
BE512951A (en)
BE513249A (en)
BE513455A (en)
BE513644A (en)
BE514775A (en)
BE516575A (en)
BE516661A (en)
BE516819A (en)
BE516872A (en)
BE516931A (en)
BE516944A (en)
BE517314A (en)
BE517337A (en)
BE517591A (en)
BE517628A (en)
BE517643A (en)
BE517992A (en)
BE518049A (en)
BE518235A (en)
BE518282A (en)