US PATENT SUBCLASS 470 / 59
.~.~ Wooden screw

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

Internet Version by PATENTEC © 1999      Terms of Use


470 /   HD   THREADED, HEADED FASTENER, OR WASHER MAKING: PROCESS AND APPARATUS

57  DF  APPARATUS FOR MAKING EXTERNALLY THREADED FASTENER OR ARTICLE, E.G., SCREW, BOLT, ETC. {2}
58  DF  .~ Screw fastener making {6}
59.~.~ Wooden screw

DEFINITION

Classification: 470/59

Wooden screw:

(under subclass 58) Subject matter wherein the fastener is composed of cellulose extracted from interior part of a tree.