All Patents in class 451/919


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All Patents in class 451/919
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	3,494,388	Feb. 10, 1970	L.C. Jenkins, V.O. Sanders	Turning and Boring Head
	3,902,278	Sep. 02, 1975	R.E. Crossman, H.R. Uhtenwoldt	Grinding Machine for Generating an Epitrochoidal Surface