US PATENT SUBCLASS 83 / 819
.~.~.~.~ By fluid means


Current as of: June, 1999
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83 /   HD   CUTTING

788  DF  BY ENDLESS BAND OR CHAIN KNIFE {10}
814  DF  .~ With means to guard the tension {2}
816  DF  .~.~ With means to vary distance between pulley or sprocket axes {2}
818  DF  .~.~.~ Including means to yieldably bias pulley {1}
819.~.~.~.~ By fluid means


DEFINITION

Classification: 83/819

(under subclass 818) Device wherein the force tending to move the wheel-like member is a fluid or gaseous means.