IT1259648B - Apparecchio auricolare antirumore selettivo - Google Patents

Apparecchio auricolare antirumore selettivo

Info

Publication number
IT1259648B
IT1259648B ITFI920093A ITFI920093A IT1259648B IT 1259648 B IT1259648 B IT 1259648B IT FI920093 A ITFI920093 A IT FI920093A IT FI920093 A ITFI920093 A IT FI920093A IT 1259648 B IT1259648 B IT 1259648B
Authority
IT
Italy
Prior art keywords
hearing device
selective
antinoise
hearing
protecting
Prior art date
Application number
ITFI920093A
Other languages
English (en)
Original Assignee
D D S R L
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 D D S R L filed Critical D D S R L
Priority to ITFI920093A priority Critical patent/IT1259648B/it
Publication of ITFI920093A0 publication Critical patent/ITFI920093A0/it
Publication of ITFI920093A1 publication Critical patent/ITFI920093A1/it
Application granted granted Critical
Publication of IT1259648B publication Critical patent/IT1259648B/it

Links

Landscapes

  • Headphones And Earphones (AREA)

Abstract

E' descritto un apparecchio auricolare che consente di eliminare i rumori in modo selettivo proteggendo l'udito e consentendo nello stesso tempo di percepire eventuali segnali acustici.
ITFI920093A 1992-04-21 1992-04-21 Apparecchio auricolare antirumore selettivo IT1259648B (it)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ITFI920093A IT1259648B (it) 1992-04-21 1992-04-21 Apparecchio auricolare antirumore selettivo

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITFI920093A IT1259648B (it) 1992-04-21 1992-04-21 Apparecchio auricolare antirumore selettivo

Publications (3)

Publication Number Publication Date
ITFI920093A0 ITFI920093A0 (it) 1992-04-21
ITFI920093A1 ITFI920093A1 (it) 1993-10-21
IT1259648B true IT1259648B (it) 1996-03-25

Family

ID=11350064

Family Applications (1)

Application Number Title Priority Date Filing Date
ITFI920093A IT1259648B (it) 1992-04-21 1992-04-21 Apparecchio auricolare antirumore selettivo

Country Status (1)

Country Link
IT (1) IT1259648B (it)

Also Published As

Publication number Publication date
ITFI920093A0 (it) 1992-04-21
ITFI920093A1 (it) 1993-10-21

Similar Documents

Publication Publication Date Title
EP0711096A4 (en) TONER GENERATION DEVICE
EP0624947A3 (en) Device for changing acoustic properties.
AU6953994A (en) Microfabricated acoustic source and receiver
AU4281396A (en) Microfabricated acoustic source and receiver
GB2269960B (en) Sound output system
EP0699012A3 (en) Sound image enhancement apparatus
AU1089495A (en) Acoustic imaging sound dome
GB2306821B (en) Electro-acoustic device
DE69407794D1 (de) Akoustische sende- und empfangseinheit
GB9312021D0 (en) Vibration cancellation device
GB2298096B (en) Noise cancelling circuit and arrangement
GB2269959B (en) Sound output
GB9416463D0 (en) Sound control device
GB2300707B (en) Underwater sound transmitter
AU651636B2 (en) Acoustic noise cancelling device
GB2285552B (en) Sound amplification system
GB9419447D0 (en) Sound absorbing member
GB2322506B (en) Low frequency underwater sound source
ZA957954B (en) Sound absorbing arrangement
GB9507262D0 (en) Sound transmission reduction device
PL309878A1 (en) Sound absorbing screen
KR950016031U (ko) 음향청취장치
TW328841U (en) Sound muting device
GB9219312D0 (en) Hearing aid transducer
GB9606836D0 (en) Acoustic device

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19951030