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US Patent: 482,572
Saw Filing Machine
Patentee: Thomas S. Disston (exact or similar names) - Philadelphia, PA USPTO Classifications: 76/39, 76/45 Tool Categories: metalworking machines : filing machines tool making : making sawblades Assignees: Henry Disston & Sons, Inc. - Philadelphia, PA Manufacturer: Not known to have been produced Witnesses: Henry Howson Eugene Elterich	Patent Dates: Applied: Dec. 07, 1891 Granted: Sep. 13, 1892 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Russ Allen. "Vintage Machinery" entry for Henry Disston & Sons

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