US PATENT SUBCLASS 257 / 254
.~.~ Physical deformation (e.g., strain sensor, acoustic wave detector)

Current as of: June, 1999
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257 /   HD   ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES)

213  DF  FIELD EFFECT DEVICE {6}
252  DF  .~ Responsive to non-optical, non-electrical signal {2}
254.~.~ Physical deformation (e.g., strain sensor, acoustic wave detector)

DEFINITION

Classification: 257/254

Physical deformation (e.g., strain sensor, acoustic wave detector):

(under subclass 252) Subject matter wherein the input is a physical deformation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

416, for acoustic wave responsive devices, generally.