BE443899A - - Google Patents

Info

Publication number
BE443899A
BE443899A BE443899DA BE443899A BE 443899 A BE443899 A BE 443899A BE 443899D A BE443899D A BE 443899DA BE 443899 A BE443899 A BE 443899A
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 BE443899A publication Critical patent/BE443899A/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
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/06—Telephone receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/02—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/033—Headphones for stereophonic communication
    • H04R5/0335—Earpiece support, e.g. headbands or neckrests

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
BE443899D 1940-12-23 BE443899A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH883805X 1940-12-23

Publications (1)

Publication Number Publication Date
BE443899A true BE443899A (de)

Family

ID=4545091

Family Applications (1)

Application Number Title Priority Date Filing Date
BE443899D BE443899A (de) 1940-12-23

Country Status (4)

Country Link
BE (1) BE443899A (de)
CH (1) CH219812A (de)
FR (1) FR883805A (de)
NL (1) NL59387C (de)

Also Published As

Publication number Publication date
NL59387C (de)
FR883805A (fr) 1943-07-20
CH219812A (de) 1942-02-28

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