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US Patent: 89,240
Improvement in steam-generators
Patentee: Treat T. Prosser (exact or similar names) - Chicago, IL USPTO Classifications: 110/108, 122/114, 122/46, 122/51 Tool Categories: transportation : automobiles : steam generators Assignees: Henry Waller - Chicago, IL Treat T. Prosser - Chicago, IL Manufacturer: Not known to have been produced Witnesses: C. F. Clausen F. H. Sprague	Patent Dates: Granted: Apr. 20, 1869 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin
Description: See the biography of the inventor in the description for patent 15,438.

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