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All Patents in class 418/187
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
24,388Jun. 14, 1859D.D. HardyRotary Steam Enginerotary steam engines
453,043May 26, 1891G. Flitz, J. Flitz, E. FlitzRotary Motorrotary engines
1,199,229Sep. 26, 1916B.F. AugustineRotary Explosion Enginerotary engines
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