US PATENT SUBCLASS 277 / FOR 159
.~ Periphery engaging spring (277/157)

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 159.~ Periphery engaging spring (277/157) {3}
FOR 160  DF  .~.~> Incompatible shapes (277/158) {3}
FOR 164  DF  .~.~> Open-end (277/162)
FOR 165  DF  .~.~> Spiral (277/163)

DEFINITION

Classification: 277/FOR.159

Foreign art collections comprising a spring which engages the periphery of the packing member.