US Patent: 2,215,259
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Strain Gauge
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Patentees:
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Chester W. E. Witter (exact or similar names) - Ridgewood, Bergen County, NJ |
James G. Sisson (exact or similar names) - Athol, Worcester County, MA |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
May 25, 1939 |
Granted: |
Sep. 17, 1940 |
USPTO (New site tip) Google Patents
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Joel Havens "Vintage Machinery" entry for L. S. Starrett Co. Wikipedia entry for the L. S. Starrett Company The Starrett Story History of the L. S. Starrett Co.
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