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US Patent: 1,535,096
Hack saw blade
Patentee: George J. Blum (exact or similar names) - Chicago, IL USPTO Classifications: 30/350, 76/112, 83/835 Tool Categories: metalworking tools : hacksaws Assignees: Armstrong-Blum Mfg. Co. - Chicago, IL Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Dec. 08, 1921 Granted: Apr. 28, 1925 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Armstrong-Blum Manufacturing Co.

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