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
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> Cam-operated
9
DF
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> Hydraulic and steam
10
DF
.~
> Lever-operated
11
DF
.~
> Screw-operated
12
DF
.~
> Weight
