BE410671A - - Google Patents

Info

Publication number
BE410671A
BE410671A BE410671DA BE410671A BE 410671 A BE410671 A BE 410671A BE 410671D A BE410671D A BE 410671DA BE 410671 A BE410671 A BE 410671A
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 BE410671A publication Critical patent/BE410671A/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1008—Earpieces of the supra-aural or circum-aural type

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
BE410671D 1935-04-09 BE410671A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2134084X 1935-04-09

Publications (1)

Publication Number Publication Date
BE410671A true BE410671A (enrdf_load_stackoverflow)

Family

ID=7986540

Family Applications (1)

Application Number Title Priority Date Filing Date
BE410671D BE410671A (enrdf_load_stackoverflow) 1935-04-09

Country Status (4)

Country Link
US (1) US2134084A (enrdf_load_stackoverflow)
BE (1) BE410671A (enrdf_load_stackoverflow)
CH (1) CH190273A (enrdf_load_stackoverflow)
FR (1) FR793231A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR793231A (fr) 1936-01-20
US2134084A (en) 1938-10-25
CH190273A (de) 1937-04-15

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