US Patent: 2,030,562
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| Metal Working Apparatus
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Patentees:
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| John S. Barnes (deceased, estate of) (exact or similar names) - Rockford, Winnebago County, IL |
| Hope Barnes (executrix) (exact or similar names) - Rockford, Winnebago County, IL |
| Paul R. Guirl (exact or similar names) - Rockford, Winnebago County, IL |
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Patent Dates:
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| Applied: |
Nov. 24, 1933 |
| Granted: |
Feb. 11, 1936 |
| Reissue Information: |
| Reissued as RE20,974 (Jan. 10, 1939) |
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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: |
| The reissue of this patent was seen on a patent plate of a Cincinnati Cylindrical Grinder. |
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