US Patent: 1,309,654
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| Centering Tool
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Patentee:
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| John Russell Parks (exact or similar names) - Franklinville, NC |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 03, 1918 |
| Granted: |
Jul. 15, 1919 |
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Ralph Brendler
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Description: |
| This gage automatically adjusts a collar to the center of a round workpiece, allowing the center to be quickly and easily marked. |
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