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All Patents in class 228/155
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	162,422	Apr. 20, 1875	G.H. Sellers	Method of Enlarging the Ends of Metal-Bars
	2,827,552	Mar. 18, 1958	V. Berthelsen	Platen construction method
	3,293,739	Dec. 27, 1966	C.W. Hoglund, A.G. Coy	Method of holding deformable objects

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