FR675338A - Appareil acoustique - Google Patents

Appareil acoustique

Info

Publication number: FR675338A
Authority: FR; France
Prior art keywords: acoustic device; acoustic
Prior art date: 1928-05-19
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

Inventor

Charles Fensky

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.)

1928-05-19

Filing date

1929-05-17

Publication date

1930-02-08

1929-05-17 Application filed filed Critical

1930-02-08 Application granted granted Critical

1930-02-08 Publication of FR675338A publication Critical patent/FR675338A/fr

Status Expired legal-status Critical Current

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)
Headphones And Earphones (AREA)
Percussion Or Vibration Massage (AREA)

FR675338D 1928-05-19 1929-05-17 Appareil acoustique Expired FR675338A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US278961A US1824427A (en)	1928-05-19	1928-05-19	Hearing device

Publications (1)

Publication Number	Publication Date
FR675338A true FR675338A (fr)	1930-02-08

Family

ID=10044585

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR675338D Expired FR675338A (fr)	1928-05-19	1929-05-17	Appareil acoustique

Country Status (4)

Country	Link
US (1)	US1824427A (fr)
DE (1)	DE513878C (fr)
FR (1)	FR675338A (fr)
GB (1)	GB331044A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2738850A (en) *	1951-08-30	1956-03-20	Kenneth O Tooker	Artificial hearing aid
US3451502A (en) *	1968-04-03	1969-06-24	Jack P Branch	Tone frequency noise filter
US4556122A (en) *	1981-08-31	1985-12-03	Innovative Hearing Corporation	Ear acoustical hearing aid
USD783003S1 (en) *	2013-02-07	2017-04-04	Decibullz Llc	Moldable earpiece
USD732510S1 (en) *	2014-06-20	2015-06-23	T.REX Holdings, LLC	In-ear headphone
USD732511S1 (en) *	2014-06-20	2015-06-23	T.REX Holdings, LLC	In-ear headphone pair in joined charging configuration
US9516401B2 (en)	2014-07-10	2016-12-06	T.REX Holdings, LLC	Wireless in-ear headphones
TWD176082S (zh) *	2014-12-29	2016-06-01	三星電子股份有限公司	耳機蓋之部分
USD781268S1 (en) *	2015-12-24	2017-03-14	Intel Corporation	Earpiece device
USD850418S1 (en) *	2017-11-10	2019-06-04	Changjian Su	Wireless earphone

1928
- 1928-05-19 US US278961A patent/US1824427A/en not_active Expired - Lifetime
1929
- 1929-05-10 GB GB14623/29A patent/GB331044A/en not_active Expired
- 1929-05-17 FR FR675338D patent/FR675338A/fr not_active Expired
- 1929-05-19 DE DEF68421D patent/DE513878C/de not_active Expired

Also Published As

Publication number	Publication date
US1824427A (en)	1931-09-22
GB331044A (en)	1930-06-26
DE513878C (de)	1930-12-04

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