US PATENT SUBCLASS 411 / 351
.~ Draw bar or draft key fastener

Current as of: June, 1999
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411 /   HD   EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER

337  DF  HEADED FASTENER ELEMENT WITH NUT, WASHER, SECURING MEANS OR CAP {12}
351.~ Draw bar or draft key fastener

DEFINITION

Classification: 411/351

With draw bar or draft key fastener:

(under subclass 337) Subject matter wherein the fastening means consists of an elongated bar having a substantially rectangular cross section and structured for particular use in securing locomotive couplings.

SEE OR SEARCH CLASS

213, Railway Draft Appliances,

62, for cushioned drawbar and cushioned yoked drawbar connections.