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US Patent: 2,623,560
Polygonal framework type clamping machine
Patentee: Alan H. Joseph (exact or similar names) - Chicago, IL USPTO Classifications: 269/112, 269/114, 269/146, 269/203, 269/221, 269/33 Tool Categories: work holding : clamps Assignees: Handy Manufacturing Co. - Chicago, IL Manufacturer: Handy Manufacturing Co. - Chicago, IL Witnesses: Unknown	Patent Dates: Applied: Jan. 15, 1948 Granted: Dec. 30, 1952 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Carl Matthews "Vintage Machinery" entry for Handy Manufacturing Co.

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