US PATENT SUBCLASS 333 / 146
.~.~ Helical propagation path

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

24 R  DF  COUPLING NETWORKS {15}
141  DF  .~ Delay lines including elastic bulk wave propagation means {7}
146.~.~ Helical propagation path

DEFINITION

Classification: 333/146

Helical propagation path:

(under subclass 141) Subject matter wherein the structure for transmitting mechanical waves includes a helical propagation path.