US PATENT SUBCLASS 285 / FOR 121
.~.~ Radially compressed packing (285/139)

Current as of: June, 1999
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285 /   HD   PIPE JOINTS OR COUPLINGS

FOR 100  DF  SYSTEMS (285/120) {11}
FOR 120  DF  .~ Inner to spaced outer tube coupling (285/138) {2}
FOR 121.~.~ Radially compressed packing (285/139)

DEFINITION

Classification: 285/FOR.121

Foreign art collection including a packing about the inner tube which is compressed by radially acting means, e.g., set screws.