US Patent: RE20,974
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| Metal Working Apparatus
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Patentees:
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| Paul R. Guirl (exact or similar names) - Rockford, Winnebago County, IL |
| John S. Barnes (deceased, estate of) (exact or similar names) - Rockford, Winnebago County, IL |
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Patent Dates:
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| Applied: |
Feb. 10, 1935 |
| Granted: |
Jan. 10, 1939 |
| Reissue Information: |
| Reissue of 2,030,562 (Feb. 11, 1936) |
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Patent Pictures:
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Joel Havens "Vintage Machinery" entry for W. F. & John Barnes Co.
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Description: |
| This patent was seen on a patent plate of a Cincinnati Cylindrical Grinder. |
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