US Patent: 3,192,804
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Chain Clamps
Chain Pipe Wrench.
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Patentees:
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| Christian Petersen (exact or similar names) - DeWitt, NE |
| William L. Becker (exact or similar names) - Denver, CO |
| Emil A. Allemeier (exact or similar names) - Spencerville, OH |
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Patent Dates:
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| Applied: |
Sep. 20, 1962 |
| Granted: |
Jul. 06, 1965 |
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Patent Pictures:
[
1 | 2 | 3
]
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C. Petersen, W.L. Becker, and E.A. Allemeier patent July 6, 1965 |
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Stan Schulz
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Description: |
| The chain wrench version of the Vise-Grip® locking plier wrench. The first page of the patent drawings is illegible in the patent office's on-line database. The patent includes a couple of alternate forms. The specifications cite the April 8, 1924 Petersen patent no. 1,489,458.The lever handle on the example shown in photo 2 is marked U.S. PAT NO. 2,280,005 U.S. PAT No. 2,514,130 OTHER PAT. PEND. |
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