US Patent: 1,829,323
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| Micrometer
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Patentees:
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| Victor F. Witter (exact or similar names) - Fremont, OH |
| Urban A. Frederick (exact or similar names) - Fremont, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 12, 1928 |
| Granted: |
Oct. 27, 1931 |
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Joel Havens
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Description: |
| Owen & Owen - patent attorneys
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