US PATENT SUBCLASS 277 / FOR 120
.~.~ Internal shell (277/118)

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

FOR 100  DF  RADIALLY CONTAINED PACKING WITH AXIALLY ACTING FOLLOWER (277/102) {15}
FOR 119  DF  .~ Wedging surfaces (277/117) {2}
FOR 120.~.~ Internal shell (277/118)

DEFINITION

Classification: 277/FOR.120

Foreign art collections wherein a wedging surface is on a shell within the chamber.