US PATENT SUBCLASS 333 / 149
.~.~ Significant transducer structure

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}
149.~.~ Significant transducer structure

DEFINITION

Classification: 333/149

Significant transducer structure:

(under subclass 141) Subject matter not classifiable in other subclasses indented thereunder where the transducers used for electromechanical conversion are structured or dimensioned to provide high efficiency conversion, impedance matching, mode conversion, shock resistance, or nonreflective properties.