FR1111530A - Electro-acoustic device for people with hearing difficulties - Google Patents

Electro-acoustic device for people with hearing difficulties

Info

Publication number
FR1111530A
FR1111530A FR1111530DA FR1111530A FR 1111530 A FR1111530 A FR 1111530A FR 1111530D A FR1111530D A FR 1111530DA FR 1111530 A FR1111530 A FR 1111530A
Authority
FR
France
Prior art keywords
electro
people
acoustic device
hearing difficulties
hearing
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Erich Schumann
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.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR1111530A publication Critical patent/FR1111530A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C11/00—Non-optical adjuncts; Attachment thereof
    • G02C11/06—Hearing aids

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • General Physics & Mathematics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Optics & Photonics (AREA)
FR1111530D 1953-04-27 1954-04-27 Electro-acoustic device for people with hearing difficulties Expired FR1111530A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1111530X 1953-04-27

Publications (1)

Publication Number Publication Date
FR1111530A true FR1111530A (en) 1956-03-01

Family

ID=7723707

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1111530D Expired FR1111530A (en) 1953-04-27 1954-04-27 Electro-acoustic device for people with hearing difficulties

Country Status (1)

Country Link
FR (1) FR1111530A (en)

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