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US Patent: 3,073,195
Apparatus for Notching the Ends of Tubing in the Preparation of Tubular Assemblies
Patentee: Frank Koster (exact or similar names) - Melrose Park, IL USPTO Classifications: 83/191, 83/581, 83/636, 83/683, 83/694 Tool Categories: specialty tools : pipe and tube notchers specialty machines : tube cutting machines Assignees: Vogel Tool & Die Corp. - Chicago, IL Manufacturer: Vogel Tool & Die Corp. - Chicago, IL Witnesses: Unknown	Patent Dates: Applied: Nov. 25, 1957 Granted: Jan. 15, 1963 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens Vintage Machinery entry for Vogel Tool & Die Corp.

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