US PATENT SUBCLASS 411 / 540
.~.~ Pivotally hinged sections

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


411 /   HD   EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER

531  DF  WASHER STRUCTURE {11}
539  DF  .~ Radially positionable {2}
540.~.~ Pivotally hinged sections

DEFINITION

Classification: 411/540

Pivotally hinged sections:

(under subclass 539) Subject matter wherein the means comprise plural connected segments rotatable about points where the segments are so connected.