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US Patent: 1,798,310
Board Hammer
Patentee: William W. cri (exact or similar names) - Cleveland, Cuyahoga County, OH USPTO Classifications: 72/439 Tool Categories: metalworking machines : forging machines : power hammers Assignees: Ajax Manufacturing Co. (Cleveland) - Euclid, Cuyahoga County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 16, 1928 Granted: Mar. 31, 1931 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Ajax Manufacturing Company

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