US PATENT SUBCLASS 251 / 6
.~ Roller tube contacting element


Current as of: June, 1999
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251 /   HD   VALVES AND VALVE ACTUATION

4  DF  TUBE COMPRESSORS {4}
6.~ Roller tube contacting element


DEFINITION

Classification: 251/6

(under subclass 4) Devices comprising rollers which contact and compress the conveyor.