US PATENT SUBCLASS 73 / 848
.~.~.~ To failure

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

760  DF  SPECIMEN STRESS OR STRAIN, OR TESTING BY STRESS OR STRAIN APPLICATION {12}
788  DF  .~ By loading of specimen (e.g., strength of material test) {16}
847  DF  .~.~ Torsion {1}
848.~.~.~ To failure

DEFINITION

Classification: 73/848

To failure:

(under subclass 847) Subject matter where the torsional load is applied until a permanent change of characteristic of the specimen occurs.