FR341378A - Acoustic horn - Google Patents

Acoustic horn

Info

Publication number
FR341378A
FR341378A FR341378A FR341378DA FR341378A FR 341378 A FR341378 A FR 341378A FR 341378 A FR341378 A FR 341378A FR 341378D A FR341378D A FR 341378DA FR 341378 A FR341378 A FR 341378A
Authority
FR
France
Prior art keywords
acoustic horn
horn
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
FR341378A
Other languages
French (fr)
Inventor
Hans Sieger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR341378A publication Critical patent/FR341378A/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)
  • Psychology (AREA)
  • Acoustics & Sound (AREA)
  • Biophysics (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
FR341378A 1904-03-16 1904-03-16 Acoustic horn Expired FR341378A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR341378T 1904-03-16

Publications (1)

Publication Number Publication Date
FR341378A true FR341378A (en) 1904-08-06

Family

ID=1390445

Family Applications (1)

Application Number Title Priority Date Filing Date
FR341378A Expired FR341378A (en) 1904-03-16 1904-03-16 Acoustic horn

Country Status (1)

Country Link
FR (1) FR341378A (en)

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