AT17833B - - Google Patents

Info

Publication number
AT17833B
AT17833B AT17833DA AT17833B AT 17833 B AT17833 B AT 17833B AT 17833D A AT17833D A AT 17833DA AT 17833 B AT17833 B AT 17833B
Authority
AT
Austria
Application number
Other languages
German (de)
Inventor
Fritz Dr Hubbes
Original Assignee
Fritz Dr Hubbes
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 by Fritz Dr Hubbes filed Critical Fritz Dr Hubbes
Application granted granted Critical
Publication of AT17833B publication Critical patent/AT17833B/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • H04R25/04—Electric hearing aids comprising pocket amplifiers
    • 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)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Psychology (AREA)
  • Signal Processing (AREA)
  • Neurosurgery (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
AT17833D 1903-10-17 1903-10-17 AT17833B (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT17833T 1903-10-17
GB190323077T 1903-10-24
FR336260T 1903-10-26

Publications (1)

Publication Number Publication Date
AT17833B true AT17833B (fr) 1904-10-10

Family

ID=62566549

Family Applications (1)

Application Number Title Priority Date Filing Date
AT17833D AT17833B (fr) 1903-10-17 1903-10-17

Country Status (3)

Country Link
AT (1) AT17833B (fr)
FR (1) FR336260A (fr)
GB (1) GB190323077A (fr)

Also Published As

Publication number Publication date
FR336260A (fr) 1904-03-04
GB190323077A (en) 1903-12-17

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