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US Patent: 448,525
Punching Machine
Patentee:
De Lancy Kennedy - New York, NY

USPTO Classifications:
74/106, 74/98, 83/632

Tool Categories:
metalworking machines : punch presses

Assignees:
None

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

Witnesses:
Richard C. Shimeall
W. W. Barnes
A. Ruppert

Patent Dates:
Applied: Dec. 11, 1890
Granted: Mar. 17, 1891

Patent Pictures: [ 1 | 2 ]
USPTO pdf tiff
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"Vintage Machinery" entry for Pratt, Whitney & Co.

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