US PATENT SUBCLASS 439 / 543
.~.~ Threaded shaft or tube

Current as of: June, 1999
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439 /   HD   ELECTRICAL CONNECTORS

527  DF  WITH SUPPORTING MEANS FOR COUPLING PART {18}
542  DF  .~ Elongated member supporting connector at its extremity or member for interfitting with such an elongated member {1}
543.~.~ Threaded shaft or tube

DEFINITION

Classification: 439/543

Threaded shaft or tube:

(under subclass 542) Coupling part wherein the rodlike member may be hollow along its axis and a helically ribbed at its greatest extent for interfitting with a cooperating portion of the held or retained structure.