US PATENT SUBCLASS 220 / 727
.~.~ Removably attached by rotary motion (e.g., screw, bayonet, etc.)

Current as of: June, 1999
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220 /   HD   RECEPTACLES

694  DF  CONTAINER ATTACHMENT OR ADJUNCT {21}
724  DF  .~ Valve protector {4}
727.~.~ Removably attached by rotary motion (e.g., screw, bayonet, etc.)

DEFINITION

Classification: 220/727

Removably attached by rotary motion (e.g., screw, bayonet, etc.):

(under subclass 724) Subject matter wherein the valve protector includes structure for detachably connecting the valve protector to the receptacle by a twisting motion.