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All Patents in class 91/183
Patents 1 - 4 of 4
First set of recordsLast set of records
9,078Jun. 29, 1852P.M. Hutton, H.R. RemsenLocomotive-Enginerailroad locomotives
28,242May 08, 1860J. RandallReciprocating Steam Enginesteam engines
778,315Dec. 27, 1904T.D. Ulrich, E. HuberSuperheater for Traction Enginessuperheaters
2,951,342Sep. 06, 1960H.E. Boyer, N.V. Gusching, W.H. Ulman, D.E. LundeenElectro-hydraulic servo system
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