US PATENT SUBCLASS 180 / 69.22
.~.~ With noise suppression means

Current as of: June, 1999
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180 /   HD   MOTOR VEHICLES

54.1  DF  POWER {19}
69.2  DF  .~ Hoods {4}
69.22.~.~ With noise suppression means {1}
69.23  DF  .~.~.~> Noise suppression means prevents hood from vribrating (i.e., anti rattlers)

DEFINITION

Classification: 180/69.22

With noise suppression means:

(under subclass 69.2) Power plant covers wherein the cover is provided with means to reduce the transmission of acoustical vibrations caused by the operation of the power plant or by the movement of the cover relative to the vehicle.

SEE OR SEARCH CLASS

181, Acoustics,

284+, for sound absorbing panels.