US PATENT SUBCLASS 310 / 336
.~.~.~.~ Nondestructive testing type


Current as of: June, 1999
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310 /   HD   ELECTRICAL GENERATOR OR MOTOR STRUCTURE

300  DF  NON-DYNAMOELECTRIC {4}
311  DF  .~ Piezoelectric elements and devices {17}
328  DF  .~.~ With mechanical energy coupling means {6}
334  DF  .~.~.~ Acoustic wave type generator or receiver {3}
336.~.~.~.~ Nondestructive testing type


DEFINITION

Classification: 310/336

Nondestructive testing type:

(under subclass 334) Subject matter disclosed as being used in the determination of physical characteristics of a body or material by producing acoustic wave energy to be applied to the body or material and/or by being mechanically stressed by acoustic wave energy received from the body or material.

SEE OR SEARCH CLASS

73, Measuring and Testing,

67+, for systems which utilize the above transducers.