US PATENT SUBCLASS 333 / 162
.~.~ Helical line structures and lines developed from a helical structure

Current as of: June, 1999
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333 /   HD   WAVE TRANSMISSION LINES AND NETWORKS

24 R  DF  COUPLING NETWORKS {15}
156  DF  .~ Delay lines including long line elements {5}
162.~.~ Helical line structures and lines developed from a helical structure {1}
163  DF  .~.~.~> Having plural concentric helices

DEFINITION

Classification: 333/162

Helical line structures and lines developed from a helical structure:

(under subclass 156) Subject matter wherein the structure for retarding wave energy is a transmission line including at least one conductor having a helical configuration or a configuration developed from a helix.