US Patent: 573,313
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| Wrench
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Patent Dates:
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| Applied: |
Apr. 14, 1896 |
| Granted: |
Dec. 15, 1896 |
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Patent Pictures:
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John F. Tiner Pat. Dec. 15.1896 |
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Description: |
| The main focus of the patent is the shape of the jaws to hold the opposing corners of a range of sizes of square nuts.
Corresponding June 14, 1897 Canadian patent no. CA-56,258 includes a pipe grip jaw attachment, and gives the full names of both principals.
Some Wm. Hjorth plier wrenches marked with this patent date may be anticipating A. W. Hjorth's Sept. 8, 1903 patent (no. 738,444). |
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