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US Patent: 251,442
Grinding and amalgamating pan
Patentee:
Frank A. Huntington - San Francisco, CA

USPTO Classifications:
209/191, 241/107, 241/46.04, 241/46.08

Tool Categories:
specialty machines : ore processing apparatus

Assignees:
None

Manufacturer:
Globe Iron Works, San Francisco - San Francisco, CA

Witnesses:
S. H. Nourse
Frank A. Brooks

Patent Dates:
Applied: May 10, 1881
Granted: Dec. 27, 1881

Patent Pictures:
USPTO pdf tiff
Google Patents
Report data errors or omissions
"Vintage Machinery" entry for Globe Iron Works, San Francisco
Wikipedia biography of Frank A. Huntington

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