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US Patent: 136,253
Power Hammers
Patentee: John M. Long (exact or similar names) - Hamilton, Butler County, OH USPTO Classifications: 192/224, 72/431, 72/441 Tool Categories: metalworking machines : forging machines : drop hammers Assignees: Long & Allstatter Co. - Hamilton, Butler County, OH Manufacturer: Long & Allstatter - Hamilton, Butler County, OH Witnesses: Frank Millward J. L. Wartmann R. M. Hunter T. Hunter	Patent Dates: Applied: Feb. 25, 1873 Granted: Feb. 25, 1873 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Long & Allstatter Co.

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