US PATENT SUBCLASS 182 / 227
.~.~ With intermediate staff

Current as of: June, 1999
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182 /   HD   FIRE ESCAPE, LADDER, OR SCAFFOLD

224  DF  SCAFFOLD HORSE BEAM OR LEG {1}
225  DF  .~ Relatively movable {2}
227.~.~ With intermediate staff

DEFINITION

Classification: 182/227

(under subclass 225) Device including a vertical staff like member between the beam and legs.

SEE OR SEARCH THIS CLASS, SUBCLASS:

149, for elevating means between a trestle beam and legs.

181.1, for a trestle with adjustable means between the legs and beam.