US Patent: 773,735 - Power Hammer


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US Patent: 773,735

Power Hammer

Patentee:

Thomas H. Griffitts (exact or similar names) - San Francisco, San Francisco County, CA

USPTO Classifications:

Tool Categories:

metalworking machines : forging machines : power hammers

Assignees:

None

Manufacturer:

Griffitts Machine Works - San Francisco, San Francisco County, CA

Witnesses:

P. W. J. Lander

Alfred A. Enquist

George S. Manuel

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

Patent Pictures: [ 1 | 2 ]

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