(under subclass 328) Subject matter wherein the electrical output of the piezoelectric element is disclosed as being used to indicate the magnitude of the mechanical force or forces stressing the element.
SEE OR SEARCH CLASS
73, Measuring and Testing,
290, 721, 727, 763+, and 861.18+ for various force or pressure measuring and indicating devices or systems which
may utilize a piezoelectric transducing element.
600, Surgery,
481+, for a cardiovascular pressure transducer which may utilize a piezoelectric transducing element.