US Patent: 640,308
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| Wrench
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Patentee:
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| Henry E. Koch (exact or similar names) - Hartington, NE |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 22, 1899 |
| Granted: |
Jan. 02, 1900 |
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Patent Pictures:
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Henry E. Koch patent January 2, 1900 |
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Stan Schulz
"unmarked" in 45spaces/vintage wrenches
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Description: |
| Variations of clamping jaws which are tightened by a screw withdrawing from the end of the handle, connected to the jaws by an intermediate link. The jaws could have teeth for pipe, or be used for blacksmith tongs.
An unmarked, possibly "one-off" piece noted in "45spaces/vintage wrenches" appears to correspond to features of this design. |
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