US Patent: 2,027,534
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| Stud Bolt Wrench
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Patentee:
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| Charles B. Ingersoll (exact or similar names) - Cleveland, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 05, 1933 |
| Granted: |
Jan. 14, 1936 |
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Patent Pictures:
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Charles B. Ingersoll patent January 14, 1936 |
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Stan Schulz
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Description: |
| The outer shell has a hexagonal bore; the inner core with slots for the gripping rollers is held in the shell by a split ring. Parts of the hexagonal bore and rollers have fine teeth to provide firm grip.
F. E. Shannon - patent attorney
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