US Patent: 440,003
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| Wrench
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Patentee:
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| Walter S. Bunch (exact or similar names) - Marshfield, OR |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 03, 1890 |
| Granted: |
Nov. 04, 1890 |
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Patent Pictures:
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Wlater S. Bunch patent November 4, 1890 |
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Stan Schulz
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Description: |
| A sliding wedge in the frame forces a second wedge with fine teeth against the inside of the movable jaw. The sliding wedge is held in engagement by a compression spring.
Corresponding British patent GB-189100734 was registered with effective date of Sept. 3, 1890. |
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