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US Patent: 1,762,498
Hardness-testing method and apparatus
Patentee: Charles H. Wilson (exact or similar names) - Pelham, NY USPTO Classifications: 73/83 Tool Categories: metalworking tools : machinist tools : measuring tools : metal hardness testers Assignees: Wilson-Maeulen Co., Inc. - New York, NY Manufacturer: Wilson-Maeulen Co., Inc. - New York, NY Wilson Mechanical Instrument Co., Inc. - New York, NY Witnesses: Unknown	Patent Dates: Applied: Jan. 14, 1927 Granted: Jun. 10, 1930 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin
Description: Improvements to the inventor's patent 1,762,497.

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