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Patents for B. P. Grinnell
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
4,692XMar. 03, 1827B.P. Grinnell, H.P. Babbit, S. DavisMaking watch sealstrade specific
4,700XMar. 07, 1827J. RaineySpring hammer for blacksmithsblacksmith
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