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US Patent: 7,222X
Ore washer (Riddle gold)
Gold, swinging, riddle, being an improvement on the railway car, for gold riddle, previously patented by him
Patentee:
Oscar Willis - Morganton, NC

USPTO Classifications:

Tool Categories:
specialty machines : ore processing apparatus

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Sep. 05, 1832

Patent Pictures:
USPTO pdf tiff
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Description:
Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2,000 of the almost 10,000 documents were recovered. Little is known about this patent. Only the patent drawing is available. This patent is in the database for reference only.

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