US Patent: 505,712
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| Combined Bit and Saw
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Patentee:
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| Eric O. Lofdahl (exact or similar names) - Rockford, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 29, 1892 |
| Granted: |
Sep. 26, 1893 |
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Patent Pictures:
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Eric O. Lofdahl patent September 26, 1893 |
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Stan Schulz
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Description: |
| The tool was intended to be a key hole cutter combining a wood bit of appropriate diameter, and a reduced size square shank having saw teeth on one side. |
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