US Patent: 2,952,170
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| Machine Tool with a Mechanical Cutting Tool Changer
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Patentees:
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| John A. Hansen (exact or similar names) - Greendale, Milwaukee County, WI |
| Charles A. Parske (exact or similar names) - Milwaukee, Milwaukee County, WI |
| Kurt A. Riedel (exact or similar names) - Milwaukee, Milwaukee County, WI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 10, 1959 |
| Granted: |
Sep. 13, 1960 |
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Joel Havens "Vintage Machinery" entry for Kearney & Trecker Co.
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