US Patent: 659,368
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| Truing Gage
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Patentees:
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| John E. Haberlin (exact or similar names) - Bridgeport, CT |
| William R. Haberlin (exact or similar names) - Bridgeport, CT |
| Timothy F. Hayes (exact or similar names) - Bridgeport, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 03, 1900 |
| Granted: |
Oct. 09, 1900 |
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Joel Havens
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Description: |
| A. M. Wooster - patent attorney |
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