US PATENT SUBCLASS 73 / 837
.~.~.~ Hydraulic or pneumatic actuation

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}
826  DF  .~.~ Tensile {6}
837.~.~.~ Hydraulic or pneumatic actuation

DEFINITION

Classification: 73/837

Hydraulic or pneumatic actuation:

(under subclass 826) Subject matter in which a fluid actuated device applies the load to the specimen.