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US Patent: 52,894
Power Hammer
Patentee:
Thomas Shaw (exact or similar names) - Philadelphia, PA

USPTO Classifications:
72/435

Tool Categories:
metalworking machines : forging machines : power hammers
trade specific : blacksmith

Assignees:
None

Manufacturer:
Philip S. Justice - Philadelphia, PA
Dienelt & Eisenhardt - Philadelphia, PA

Witnesses:
Ellias J. Shaw
Robert Hutchinson
H. U. Justice
Patent Dates:
Granted: Feb. 27, 1866

Reissue Information:
Reissued as RE7,475 (Jan. 23, 1877)

Patent Pictures: [ 1 | 2 | 3 ]
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"Vintage Machinery" entry for Dienelt & Eisenhardt
"Vintage Machinery" entry for Philip S. Justice

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