US PATENT SUBCLASS 147 / *
HOOP DRIVERS


Current as of: June, 1999
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147 /   HD   COOPERING

*HOOP DRIVERS {6}
7  DF  .~> Miscellaneous
8  DF  .~> Cam-operated
9  DF  .~> Hydraulic and steam
10  DF  .~> Lever-operated
11  DF  .~> Screw-operated
12  DF  .~> Weight