NL275093A - - Google Patents

Info

Publication number
NL275093A
NL275093A NL275093DA NL275093A NL 275093 A NL275093 A NL 275093A NL 275093D A NL275093D A NL 275093DA NL 275093 A NL275093 A NL 275093A
Authority
NL
Netherlands
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 NL275093A publication Critical patent/NL275093A/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
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/48—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using constructional means for obtaining a desired frequency response

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
NL275093D 1962-02-21 NL275093A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL275093 1962-02-21

Publications (1)

Publication Number Publication Date
NL275093A true NL275093A (ja)

Family

ID=19753629

Family Applications (1)

Application Number Title Priority Date Filing Date
NL275093D NL275093A (ja) 1962-02-21

Country Status (3)

Country Link
DE (1) DE1884933U (ja)
GB (1) GB973479A (ja)
NL (1) NL275093A (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK150840C (da) * 1978-12-15 1988-06-06 Gn Danavox As Krogformet del til et bag-oeret-hoereapparat
FR2490485A1 (fr) * 1980-09-22 1982-03-26 Michas Frederic Prothese auditive

Also Published As

Publication number Publication date
GB973479A (en) 1964-10-28
DE1884933U (de) 1963-12-27

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