.~ Delay lines including elastic surface wave propagation means {5}
154
.~.~ Significant transmitting or receiving transducer structure
DEFINITION
Classification: 333/154
Significant transmitting or receiving transducer structure:
(under subclass 150) Subject matter wherein the transducers required for electromechanical wave conversion have structural attributes, relative orientation, spacing, or other structural organization critical with respect to contributing to desired wave delay or wave transmission characteristics.
(1) Note. Delay lines of the elastic surface wave type which include transducer structures providing spurious signal or mode cancellation functions are not classified here but are classified in subclass 151.
