US PATENT SUBCLASS 277 / FOR 153
.~ Circumferential thrust (277/151)

Current as of: June, 1999
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277 /   HD   SEAL FOR A JOINT OR JUNCTURE

FOR 140  DF  WITH DISTINCT RADIALLY ACTING BIAS(277/138) {16}
FOR 153.~ Circumferential thrust (277/151)

DEFINITION

Classification: 277/FOR.153

Foreign art collections wherein the biasing means exerts a thrust at spaced points on the circumference of the packing and in a direction tangential or parallel thereto.