US PATENT SUBCLASS 174 / 141 R
.~.~.~ Strings or stacks

Current as of: June, 1999
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174 /   HD   ELECTRICITY: CONDUCTORS AND INSULATORS

137 R  DF  INSULATORS {17}
139  DF  .~ Combined {2}
140 R  DF  .~.~ With conductive arcing or stress distributing means {7}
141 R.~.~.~ Strings or stacks {1}
141 C  DF  .~.~.~.~> Coated

Unofficial Alpha Subclasses: R C

DEFINITION

Classification: 174/141

(under subclass 140) Structures in which the insulator consists of two or more separate insulating units arranged in series between the structures to be insulated.

(1) Note. For insulator strings and stacks, per se, see this class, subclass 150.