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US Patent: 773,735
Power Hammer
Patentee:
Thomas H. Griffitts - San Francisco, San Francisco County, CA

USPTO Classifications:
228/24

Tool Categories:
metalworking machines : forging machines : power hammers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
P. W. J. Lander
Alfred A. Enquist
George S. Manuel

Patent Dates:
Applied: Sep. 26, 1903
Granted: Nov. 01, 1904

Patent Pictures:
USPTO pdf tiff
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