US PATENT SUBCLASS 73 / 825
.~.~.~ With 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}
818  DF  .~.~ Compressional {7}
825.~.~.~ With hydraulic or pneumatic actuation

DEFINITION

Classification: 73/825

With hydraulic or pneumatic actuation:

(under subclass 818) Subject matter wherein the compressive load is applied by a fluid operated device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

816, for a similar device in which the compressive load is varied in accordance with a predetermined pattern.