Patents for Ballou Mfg. Co.


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Patents for Ballou Mfg. Co.
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	293,930	Feb. 19, 1884	C.V. Woerd	Machine for Threading Sectional Leading Screws
	301,165	Jul. 01, 1884	G.F. Ballou, W.A. Rogers	Apparatus for Cutting Screws