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US Patent: 534,008
Drop Hammer
Patentee:
Francis A. Pratt (exact or similar names) - Hartford, Hartford County, CT

USPTO Classifications:
72/439, 74/397

Tool Categories:
metalworking machines : forging machines : drop hammers

Assignees:
Pratt & Whitney Co. - Hartford, Hartford County, CT

Manufacturer:
Pratt & Whitney Co. - Hartford, Hartford County, CT

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 17, 1894
Granted: Feb. 12, 1895

Patent Pictures:
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Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Pratt, Whitney & Co.

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