FIELD: medical engineering. SUBSTANCE: earcap anti-noise protectors are made of material having magnetic properties. EFFECT: noticeable reduction of adverse effect of noise on human organism and elimination of stress and headache. 1 dwg
Title | Year | Author | Number |
---|---|---|---|
ANTI-NOISE HEAD PHONES (VERSIONS) | 2005 |
|
RU2302224C1 |
UNIVERSAL HEARING PROTECTION DEVICE AGAINST ACOUSTIC POLLUTION | 2022 |
|
RU2793840C1 |
ANTINOISE EARPHONES | 0 |
|
SU1801438A1 |
AUDIOMETER FOR INVESTIGATING SOUND ABSORPTION PROPERTIES OF LIQUIDS | 2014 |
|
RU2559173C1 |
ANTINOISE EARPHONES | 0 |
|
SU888993A1 |
SOUND-DAMPERS | 0 |
|
SU848026A1 |
METHOD FOR ERGONOMIC QUALIMETRY OF EAR PROTECTORS | 2013 |
|
RU2525511C1 |
SOUND DAMPERS | 0 |
|
SU850077A1 |
EAR PROTECTORS WITH ACOUSTIC HAZARD INDICATOR | 2014 |
|
RU2547341C1 |
EAR PROTECTORS | 2007 |
|
RU2332194C1 |
Authors
Dates
1994-05-15—Published
1991-09-10—Filed