FR813717A - Acoustic device - Google Patents

Acoustic device

Info

Publication number
FR813717A
FR813717A FR813717DA FR813717A FR 813717 A FR813717 A FR 813717A FR 813717D A FR813717D A FR 813717DA FR 813717 A FR813717 A FR 813717A
Authority
FR
France
Prior art keywords
acoustic device
acoustic
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
Simon Maurer
Bernhard Traub
Richard Thein
Viktor Frankenstein
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 FR813717A publication Critical patent/FR813717A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
    • A61F11/30—Non-electric hearing aids, e.g. ear trumpets, sound amplifiers or ear-shells

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Acoustics & Sound (AREA)
  • Biophysics (AREA)
  • Otolaryngology (AREA)
  • Psychology (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Cosmetics (AREA)
  • Toys (AREA)
  • Medicinal Preparation (AREA)
FR813717D 1935-11-27 1936-11-18 Acoustic device Expired FR813717A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT468604X 1935-11-27

Publications (1)

Publication Number Publication Date
FR813717A true FR813717A (en) 1937-06-08

Family

ID=3674710

Family Applications (1)

Application Number Title Priority Date Filing Date
FR813717D Expired FR813717A (en) 1935-11-27 1936-11-18 Acoustic device

Country Status (3)

Country Link
BE (1) BE418481A (en)
FR (1) FR813717A (en)
GB (1) GB468604A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2934160A (en) * 1957-05-06 1960-04-26 Touson Isaac Earpiece
US5440082A (en) * 1991-09-19 1995-08-08 U.S. Philips Corporation Method of manufacturing an in-the-ear hearing aid, auxiliary tool for use in the method, and ear mould and hearing aid manufactured in accordance with the method

Also Published As

Publication number Publication date
GB468604A (en) 1937-07-08
BE418481A (en)

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