US Patent: 924,675
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| Combination Gage and Bevel Square
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Patentees:
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| Charles E. Krueger (exact or similar names) - Minneapolis, Hennepin County, MN |
| William H. Krueger (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: |
Jul. 06, 1908 |
| Granted: |
Jun. 15, 1909 |
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Joel Havens
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