US Patent: 206,615
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| Calking-Vise
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Patentees:
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| Paul Rickard (exact or similar names) - Minneapolis, Hennepin County, MN |
| Anthony C. La Brash (exact or similar names) - Minneapolis, Hennepin County, MN |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 17, 1878 |
| Granted: |
Jul. 30, 1878 |
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Joel Havens
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