BE471946A - - Google Patents

Info

Publication number
BE471946A
BE471946A BE471946DA BE471946A BE 471946 A BE471946 A BE 471946A BE 471946D A BE471946D A BE 471946DA BE 471946 A BE471946 A BE 471946A
Authority
BE
Belgium
Prior art keywords
band
receiver
tape
receivers
operator
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE471946A publication Critical patent/BE471946A/fr

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00Stereophonic arrangements
    • H04R5/033Headphones for stereophonic communication
    • H04R5/0335Earpiece support, e.g. headbands or neckrests
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/04Supports for telephone transmitters or receivers
    • H04M1/05Supports for telephone transmitters or receivers specially adapted for use on head, throat or breast

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Telephone Set Structure (AREA)
BE471946D BE471946A (pt)

Publications (1)

Publication Number Publication Date
BE471946A true BE471946A (pt)

Family

ID=121660

Family Applications (1)

Application Number Title Priority Date Filing Date
BE471946D BE471946A (pt)

Country Status (1)

Country Link
BE (1) BE471946A (pt)

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