US Patent: 139,174
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| Improved Pipe Tongs
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Patentee:
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| Frank H. Merrill (exact or similar names) - San Francisco, CA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 19, 1873 |
| Granted: |
May 20, 1873 |
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Patent Pictures:
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Frank H. Merrill Pat. May 20, 1873 |
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Stan Schulz
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Description: |
| These tongs have a jaw insert adjustable by means of a pawl and teeth. The insert is easily removable for re-sharpening or to be replaced by a pipe-cutter insert. |
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