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US Patent: 1,798,309
Four Roll Hammer
Patentee:
William W. Criley (exact or similar names) - Cleveland, Cuyahoga County, OH

USPTO Classifications:
72/430, 72/438, 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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