US Patent: 2,443,880
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| Dial Gauge for Measuring Small Bores
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Patentees:
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| Erik Henry Aldeborgh (exact or similar names) - Poughkeepsie, NY |
| Alfred Hamilton Emery (exact or similar names) - Wappingers Falls, NY |
| John J. Bishop (exact or similar names) - Poughkeepsie, NY |
| Earl M. Boat (exact or similar names) - Poughkeepsie, NY |
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Patent Dates:
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| Applied: |
Apr. 05, 1946 |
| Granted: |
Jun. 22, 1948 |
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Joel Havens
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