US PATENT SUBCLASS 174 / 179
.~.~.~.~ Protected rod type

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

137 R  DF  INSULATORS {17}
176  DF  .~ With terminal elements {5}
177  DF  .~.~ Plural {5}
178  DF  .~.~.~ Multi-part, sectional or composite insulator {2}
179.~.~.~.~ Protected rod type

DEFINITION

Classification: 174/179

(under subclass 178) Two-terminal insulators comprising an elongated insulating core enclosed in a tubular structure of other insulating material.