US Patent: 120,475
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| Improvement in Pipe Wrench Attachment for Monkey Wrenches
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Patentee:
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| Andrew H. Woodruff (exact or similar names) - Lansing, IA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Oct. 31, 1871 |
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Patent Pictures:
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Andrew H. Woodruff Pat. Oct. 31, 1871 |
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Stan Schulz
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Description: |
| The jaw could sit on either the fixed or movable jaw of a a monkey wrench; it slips over the shank with spring clips.
The BILLINGS & SPENCER pipe wrench attachment introduced early in the 20th Century was also a "clip-on." |
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