US PATENT SUBCLASS 174 / 153 R
.~.~.~ Opposed wall engaging means

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

137 R  DF  INSULATORS {17}
151  DF  .~ Through wall or plate {1}
152 R  DF  .~.~ Bushing type {6}
153 R.~.~.~ Opposed wall engaging means {2}
153 A  DF  .~.~.~.~> Antennas
153 G  DF  .~.~.~.~> Grommets

Unofficial Alpha Subclasses: R A G

DEFINITION

Classification: 174/153

(under subclass 152) Devices in which the bushing is secured in the wall or plate by means located upon and engaging opposite sides of said wall or plate.