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Patent Inventor: Dave Keener
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Bi-directional clutch unit
Inventor: Keener | Patent Number: 7143884
Bi-directional clutch unit
Inventor: Keener | Patent Number: 6619457
Press drive with oil shear clutch/brake units
Inventor: Keener | Patent Number: 6422364
Clutch/brake drive
Inventor: Keener | Patent Number: 6419060
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