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All Patents of Type: inclined planes
Patents 1 - 2 of 2
First set of recordsLast set of records
5,181XAug. 05, 1828W. KnightRaising and lowering canal boats on inclined planesinclined planes
5,675XOct. 13, 1829E. MorrisMachine or inclined plane for raising or lowering boats from one level to another on canalsinclined planes
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