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All Patents in class 470/150
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	1,342	Sep. 25, 1839	J.B. Bellemere	Mode of Squaring and Finishing the Heads of Bolts, Nut and Other Plain Similar Surfaces
	AI34	Sep. 10, 1840	J.B. Bellemere	Squaring and finishing heads of bolts, nuts, etc.
	1,587,011	Jun. 01, 1926	R.S. Crosby	Tool support for metal-cutting machines

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