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All Patents of Type: jib cranes
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
374,756Dec. 13, 1887W.H. RidgwayCranejib cranes
411,681Sep. 24, 1889W.H. RidgwayCranejib cranes
1,345,881Jul. 06, 1920J.A. Butterworth, W.H. PurnellPortable Jib Cranejib cranes
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