US Patent: 454,917
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Pipe Wrench
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Patentee:
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Henry Phillips (exact or similar names) - Chicago, IL |
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Patent Dates:
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Applied: |
Jun. 19, 1890 |
Granted: |
Jun. 30, 1891 |
Patent Pictures:
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Henry Philips patent June 30, 1891 |
USPTO (New site tip) Google Patents
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Stan Schulz
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Description: |
This tongs-type pipe wrench has the adjustable pivot point on a threaded "stem" which is adjusted by a threaded ring-nut. |
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