US PATENT SUBCLASS 83 / 816
.~.~ With means to vary distance between pulley or sprocket axes

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.~.~ With means to vary distance between pulley or sprocket axes {2}
817  DF  .~.~.~> And angular relationship of axes
818  DF  .~.~.~> Including means to yieldably bias pulley {1}

DEFINITION

Classification: 83/816

(under subclass 814) Device provided with two or more tool-engaging, wheel-like members and including means to adjust the relative spacing between the axes of said members.