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Patents for Henry N. Pierce
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
701,081	May 27, 1902	H.N. Pierce	Spool-machine	spool or bobbin machines
1,105,301	Jul. 28, 1914	H.N. Pierce	Self-centering boring and reaming machine for making spools	wood drilling and boring

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