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US Patent: 787,339
Attachment for Drop Hammers
Patentee: Robert Falconer Massa (exact or similar names) - Chicago, Cook County, IL USPTO Classifications: 29/DIG.57, 29/DIG.61, 29/DIG.81, 29/DIG.96, 72/427, 72/434, 72/453.18, 74/615, 83/98 Tool Categories: metalworking machines : forging machines : drop hammers Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Oct. 22, 1904 Granted: Apr. 11, 1905 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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