US PATENT SUBCLASS 285 / 413
.~.~ Rings

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

405  DF  FLANGE {3}
406  DF  .~ Clamped {3}
413.~.~ Rings

DEFINITION

Classification: 285/413

(under subclass 406) Subject matter comprising an annular plate-like body having an aperture and a clamping or jaw portion for transmitting axial forces produced in drawing the ends of the members together; such rings, per se, have been collected here.