US Patent: 2,557,405
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| Adjustable Bearing
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Patentees:
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| Joseph B. Armitage (exact or similar names) - Wauwatosa, Milwaukee County, WI |
| Orrin W. Barker (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: |
Aug. 01, 1942 |
| Granted: |
Jun. 19, 1951 |
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Joel Havens
"Vintage Machinery" entry for Kearney & Trecker Co.
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Description: |
| Original application 01 Aug 1942. Divided and this application 08 Nov 1945. |
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