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CA Patent: CA-395,516
Hardness testing device
Patentee: Charles H. Wilson (exact or similar names) - Pelham, NY USPTO Classifications: Tool Categories: metalworking tools : machinist tools : measuring tools : metal hardness testers Assignees: Wilson Mechanical Instrument Co., Inc. - New York, NY Manufacturer: Wilson Mechanical Instrument Co., Inc. - New York, NY Wilson Mechanical Instrument Division, American Chain & Cable Co., Inc. - Bridgeport, CT Witnesses: Unknown	Patent Dates: Granted: Mar. 25, 1941 Patent Pictures: CIPO Data Espacenet patent Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Wilson Mechanical Instrument Co.

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