US PATENT SUBCLASS 285 / 357
.~.~ Threaded

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

335  DF  PACKED {20}
356  DF  .~ Gland {1}
357.~.~ Threaded

DEFINITION

Classification: 285/357

(under subclass 356) Subject matter comprising internally and externally threaded force transmitting means.