US Patent: 1,939,490
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| Compound tool
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Patentee:
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| Joseph O. Dixon (exact or similar names) - Hanover, PA |
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Patent Dates:
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| Applied: |
Jun. 30, 1930 |
| Granted: |
Dec. 12, 1933 |
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Jeff Joslin
Vintage Machinery entry for Mummert-Dixon Co.
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Description: |
| "...the invention is there embodied in a compound, rotary spotting tool, which is used for making machined or smooth faces on bosses or on the surfaces of castings around bolt holes ad the like." |
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