US PATENT SUBCLASS 29 / 407.06
.~.~.~ By radioactive tracing

Current as of: June, 1999
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29 /   HD   METAL WORKING

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
407.01  DF  .~ With testing or indicating {4}
407.05  DF  .~.~ Quantitative measuring or gauging {3}
407.06.~.~.~ By radioactive tracing

DEFINITION

Classification: 29/407.06

By radioactive tracing:

(under subclass 407.05) Process wherein unstable isotopes are used for testing or indicating.