US PATENT SUBCLASS 105 / 452
SOUND DEADENERS
Current as of: June, 1999
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DEFINITION
Classification: 105/452
(under the class definition) Devices, for elimination of noise on railway rolling-stock.
SEE OR SEARCH CLASS
181, Acoustics,
207, for sound deadening devices on mechanical vibrating structure.
295, Railway Wheels and Axles,
7, for sound-deadeners on wheels.
