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US Patent: 821,303
Drop Hammer
Patentee:
Edward W. Merrill, Jr. (exact or similar names) - New York, NY

USPTO Classifications:
72/436, 72/444, 72/453.18

Tool Categories:
metalworking machines : forging machines : drop hammers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Dec. 03, 1904
Granted: May 22, 1906

Patent Pictures:
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