US PATENT SUBCLASS 418 / 181
COMBINED


Current as of: June, 1999
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418 /   HD   ROTARY EXPANSIBLE CHAMBER DEVICES

181COMBINED


DEFINITION

Classification: 418/181

(under the class definition) Apparatus claimed in combination with features other than drive means, valving or support structure and not provided for in preceding subclasses.

SEE OR SEARCH CLASS

417, Pumps,

321, and the subclasses indented thereunder for the combination of a motor driving pump.