US PATENT SUBCLASS 182 / 153
.~ Trestle

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

Internet Version by PATENTEC © 1999      Terms of Use


182 /   HD   FIRE ESCAPE, LADDER, OR SCAFFOLD

152  DF  UNITARY FOLDABLE, RIGID SCAFFOLD OR LADDER {2}
153.~ Trestle {2}
154  DF  .~.~> Crossed leg
155  DF  .~.~> Legs foldable parallel to beam axis in all planes

DEFINITION

Classification: 182/153

(under subclass 152) Device wherein the device comprises a trestle which may be collapsed to facilitate its storage or transportation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

105, for a pivoted ladder having a control upright section supported therebetween.