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US Patent: 89,241
Improvement in steam-generators
Patentee: Treat T. Prosser (exact or similar names) - Chicago, IL USPTO Classifications: 110/231 Tool Categories: transportation : automobiles : steam generators Assignees: Henry Waller - Chicago, IL Treat T. Prosser - Chicago, IL Manufacturer: Not known to have been produced Witnesses: F. H. Sprague D. P. Holloway	Patent Dates: Granted: Apr. 20, 1869 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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