US Patent: 2,095,405
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| Bore Measuring Attachment for Dial Indicators
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Patentees:
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| Erik H. Aldeborgh (exact or similar names) - Poughkeepsie, NY |
| Christian E. Ruf (exact or similar names) - Poughkeepsie, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 12, 1937 |
| Granted: |
Oct. 12, 1937 |
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Joel Havens
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Description: |
| John J. Thompson - patent attorney
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