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US Patent: 4,934,422
Bench mountable plate joining machine
Patentees: Jeffrey L. Haffely (exact or similar names) - Gibsonia, PA Charles J. Baird (exact or similar names) - Pittsburgh, PA Robert M. Hempy (exact or similar names) - Pittsburgh, PA USPTO Classifications: 144/136.1, 144/136.9, 144/136.95, 144/371, 269/189, 269/297, 269/303, 33/570, 409/178, 409/182 Tool Categories: Assignees: Delta International Machinery Corp. - Pittsburgh, PA Manufacturer: Delta International Machinery Corp. - Pittsburgh, PA Witnesses: Unknown	Patent Dates: Applied: Oct. 18, 1989 Granted: Jun. 19, 1990 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Delta Specialty/Delta Mfg. Co./Delta-Rockwell/Rockwell Intl.

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