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US Patent: 246,274
Method of and Apparatus for Collecting the Aromatic and Volatile Substances From
Patentee:
Ralph S. Jennings (exact or similar names) - Baltimore, MD

USPTO Classifications:
202/183, 34/521, 34/75, 426/469, 426/478, 99/470, 99/495, 99/517, 99/536

Tool Categories:
manufacturing : manufacturing processes : roasting coffee

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jun. 15, 1881
Granted: Aug. 23, 1881

Patent Pictures:
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