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US Patent: 155,300
Apparatus for Treating Coffee
Patentee: John H. Grubb (exact or similar names) - Philadelphia, PA USPTO Classifications: 118/418, 18/244, 34/138, 99/518, 99/607 Tool Categories: manufacturing : manufacturing processes : roasting coffee Assignees: George Boyd - Philadelphia, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 03, 1874 Granted: Sep. 22, 1874 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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