US Patent: 983,271
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| Pipe Wrench
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Patentee:
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| Ernst Enderes (exact or similar names) - Littleport, Clayton County, IA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 21, 1909 |
| Granted: |
Feb. 07, 1911 |
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Patent Pictures:
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Ernst Enderes patent July 7, 1911 |
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Stan Schulz
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Description: |
| A spring-loaded pin in the frame pushes the movable jaw toward the "end" of the shank; a spring-loaded pawl in a frame sets the opening size for the movable jaw. |
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