US Patent: 1,999,076
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| Pipe Wrench
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Patent Dates:
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| Applied: |
Apr. 05, 1933 |
| Granted: |
Apr. 23, 1935 |
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Patent Pictures:
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John W. Bauman et. al. Patent April 23, 1935. |
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Description: |
| The movable jaw has rack teeth on one surface. A spring loaded toothed lever or lever and toothed piece in combination engage with the rack teeth to hold the adjustment. The patent drawing show three alternate versions. The production version uses the lever between the shank of the movable jaw and the wrench handle.
Produced as the BAUMO pipe wrench. |
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