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)
• Measuring And Recording Apparatus For Diagnosis (AREA)
• Orthopedics, Nursing, And Contraception (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=32522425

Family Applications (1)

Country Status (4)

• 0
  • NO NO22641D patent/NO22641A/no unknown
• 1911
  • 1911-04-20 DE DE1911244174D patent/DE244174C/de not_active Expired - Lifetime
• 1912
  • 1912-04-04 FR FR442185A patent/FR442185A/fr not_active Expired
  • 1912-04-18 GB GB191209182D patent/GB191209182A/en not_active Expired

Also Published As

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