US PATENT SUBCLASS 73 / 862.452
.~.~.~.~ For testing racket stringing

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

862  DF  DYNAMOMETERS {5}
862.381  DF  .~ Responsive to force {13}
862.391  DF  .~.~ To determine tension on a flexible element {4}
862.451  DF  .~.~.~ By measuring deflection or a deflecting force {5}
862.452.~.~.~.~ For testing racket stringing

DEFINITION

Classification: 73/862.452

For testing racket stringing:

(under subclass 862.451) Subject matter wherein the element comprises strings of a racket.