US Patent: 611,499
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| Wrench
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Patentee:
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| Charles Samule Metcalfe (exact or similar names) - Silver City, NM |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 15, 1898 |
| Granted: |
Sep. 27, 1898 |
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Patent Pictures:
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Charles S. Metcalfe patent September 27, 1898 |
USPTO (New site tip) Google Patents
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Stan Schulz
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Description: |
| Screw-adjustable jaw with an auxiliary cam-lever to provide extra gripping pressure to the jaw face. |
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