All Patents in class 92/239


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All Patents in class 92/239
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
666,368	Jan. 22, 1901	H.F. Wallman	Internal Combustion Engine	internal combustion engines
2,472,288	Jun. 07, 1949	J.H. Lentell, W.W. Schettler, L.E. Endsley	Piston	pistons