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NX Patent: NX-4,703
Scouring grain
Patentee:
Samuel Sperry - Nashville, TN

USPTO Classifications:

Tool Categories:
specialty machines : scrubbing and scouring machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Mar. 09, 1827

Patent Pictures:
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X-Patents
Description:
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.

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