US Patent: 989,708
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| Swing Frame for Pumping Oil Wells
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Patentees:
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| Charles L. Heisler (exact or similar names) - St. Mary's, Auglaize County, OH |
| Lemon G. Neely (exact or similar names) - St. Mary's, Auglaize County, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 03, 1907 |
| Granted: |
Apr. 18, 1911 |
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Joel Havens
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