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All Patents of Type: dams and weirs
Patents 1 - 3 of 3
First set of recordsLast set of records
5,662XOct. 10, 1829P. M'grathRiver dams for the easy passage up and down of fish and of vesselsdams and weirs
8,430XOct. 04, 1834A. AddisChutes for damsdams and weirs
382,395May 08, 1888B.F. ThomasWicket Damdams and weirs
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