US PATENT SUBCLASS 182 / 179.1
SELF-SUSTAINING

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

179.1SELF-SUSTAINING {5}
180.1  DF  .~> Ladder {1}
181.1  DF  .~> Scaffold horse (e.g., trestle) {7}
186.6  DF  .~> Having height adjustable platform
186.7  DF  .~> Connector for horizontal or diagonal brace {1}
186.9  DF  .~> Having cantilivered auxillary platform

DEFINITION

Classification: 182/179.1

SELF-SUSTAINING:

(under the class definition) Device adapted to rest upon the earth or other underlayment and to stand alone.

SEE OR SEARCH CLASS

52, Static Structures (e.g., Buildings),

111+, for a mechanism operated or relatively movable shaft assembly, (e.g., a self-erecting skeletonal tower), subclasses 637+ for superimposed three-dimensional openwork units, and subclass 651.10 for a three-dimensional, openwork structure.

248, Supports, for a self-sustaining support of general utility.