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US Patent: 53,250
Improvement in the Preparation of Coffee
Patentee:
Thaddeus Hyatt (exact or similar names) - Philadelphia, PA

USPTO Classifications:
426/466

Tool Categories:
manufacturing : manufacturing processes : roasting coffee

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Mar. 13, 1866

Patent Pictures:
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