US PATENT SUBCLASS 73 / 256-- .~.~.~.~ Plural stationary abutment

US PATENT SUBCLASS 73 / 256
.~.~.~.~ Plural stationary abutment

Current as of: June, 1999
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73 /	HD	MEASURING AND TESTING

861	DF	VOLUME OR RATE OF FLOW {23}
232	DF	.~ Expansible chamber {6}
253	DF	.~.~ Rotary piston or cylinder {5}
255	DF	.~.~.~ With orbital movement {2}
256		.~.~.~.~ Plural stationary abutment

DEFINITION

Classification: 73/256

(under subclass 255) Meters having a plurality of stationary

abutments for cooperation with the piston.