US Patent: 2,994,237
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| Tooth Forming Tool
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Patentees:
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| Harry Pelphrey, deceased (Estate of) (exact or similar names) - Detroit, Wayne County, MI |
| Lillian Pelphrey, Administratrix (exact or similar names) - Detroit, Wayne County, MI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 09, 1957 |
| Granted: |
Aug. 01, 1961 |
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Joel Havens
"Vintage Machinery" entry for Michigan Tool Co.
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Description: |
| Continuation of application of 09 Aug., 1957. This application 04 Oct., 1960. |
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