US PATENT SUBCLASS 277 / FOR 228
.~ Variable radius (277/217)

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

FOR 227  DF  SPLIT ANNULUS (227/216) {4}
FOR 228.~ Variable radius (277/217)

DEFINITION

Classification: 277/FOR.228

Foreign art collections wherein the radius of the packing element varies from point to point when said element is in a relaxed state.