US PATENT SUBCLASS 277 / FOR 216
.~.~ Opposite surfaces (277/209)

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

FOR 214  DF  RIBBED CONTACT SURFACE (277/207 R) {3}
FOR 215  DF  .~ Axially spaced (277/208) {1}
FOR 216.~.~ Opposite surfaces (277/209) {1}
FOR 217  DF  .~.~.~> Line contact (277/210)

DEFINITION

Classification: 277/FOR.216

Foreign art collections wherein the ribs are on opposite sides of the packing element.