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All Patents of Type: conveyors and hoppers
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,671XFeb. 22, 1812S. WalgemoreImproved conveyor, elevator, and hopper boyelevators and lifts
2,885XDec. 31, 1817G.F. SaltonstallCotton hopper for cleaning cottonconveyors and hoppers
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