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All Patents in class 470/150
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
1,342	Sep. 25, 1839	J.B. Bellemere	Mode of Squaring and Finishing the Heads of Bolts, Nut and Other Plain Similar Surfaces	lathe tools
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	nut or bolt making machines

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