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US Patent: 8,365X
Refining metal ore
Machine for facilitating the process in metallurgy of freeing the ores of the precious metals from sulphur
Patentee:
John L. Sullivan (exact or similar names) - New York, NY

USPTO Classifications:

Tool Categories:
specialty machines : ore processing apparatus

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Aug. 18, 1834

Patent Pictures:
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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. There are no patent drawings available. This patent is in the database for reference only.

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