US Patent: 2,867,154
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| Retracting Mechanism
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Patentees:
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| Morris L. Hutchens (exact or similar names) - Brookfield, Waukesha County, WI |
| Joseph J. Lenert (exact or similar names) - Milwaukee, Milwaukee County, WI |
| Frank J. Schalk (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: |
Sep. 23, 1955 |
| Granted: |
Jan. 06, 1959 |
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Joel Havens "Vintage Machinery" entry for Kearney & Trecker Co.
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