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US Patent: 815,312
Adjustable piston-rod and cross-head connection
Patentee: Carl G. Sprado (exact or similar names) - Milwaukee, WI USPTO Classifications: 403/316 Tool Categories: Assignees: Allis-Chalmers Co. - Milwaukee, WI Manufacturer: Allis-Chalmers Co. - Milwaukee, WI Witnesses: G. F. De Wein John Day, Jr.	Patent Dates: Applied: Sep. 14, 1905 Granted: Mar. 13, 1906 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Allis-Chalmers Mfg. Co.

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