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US Patent: 793,561
Engine
Patentee: Henry Bolthoff (exact or similar names) - Denver, CO USPTO Classifications: 254/340, 254/360, 74/44 Tool Categories: material handling : industrial elevators and lifts Assignees: None Manufacturer: Hendrie & Bolthoff Manufacturing & Supply CO. - Denver, CO Witnesses: Dena Nelson A. J. O'Brien	Patent Dates: Applied: Dec. 09, 1890 Granted: Jun. 27, 1905 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Hendrie & Bolthoff Mfg. & Supply Co.

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