US Patent: 1,770,045
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Apparatus for Measuring the Hardness of Materials
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Patentees:
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Albert F. Shore (exact or similar names) - New York, NY |
Charles P. Shore (exact or similar names) - Hicksville, Nassau County, NY |
USPTO Classifications: |
73/81 |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Mar. 16, 1925 |
Granted: |
Jul. 08, 1930 |
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Joel Havens "Vintage Machinery" entry for Shore Instrument & Manufacturing Co.
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