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nx-patents:nx-2640

Patent NX-2640: 1816-07-05, Mill for grinding, washing, etc, gold and silver ores

X Number Date Inventor City Title
NX-2640 1816-07-05 Northrop Rockwell Castleton, Rutland County, VT Mill for grinding, washing, etc, gold and silver ores

Comments

NX series patents are X-patents that do not have numbers. They have been arbitrarily assigned NX numbers to allow them to be entered into the Datamp file. We do not know whether they were actual patents as all that we have are the listings. They are entered here for reference and further research only.

Information Sources

(To be filled in.)

nx-patents/nx-2640.txt · Last modified: 2019/05/25 02:29 (external edit)