US Patent: 591,720
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| Combination-Tool
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Patentee:
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| Charles J. Armstrong (exact or similar names) - Austin, TX |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 25, 1897 |
| Granted: |
Oct. 12, 1897 |
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Patent Pictures:
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Charles J. Armstrong patent October 12, 1897 |
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Stan Schulz
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Description: |
| The combination is hammer, staple puller, tack puller, screwdriver, and jaws shaped to provide multiple gripping sizes for pipe, square nuts, and flat pliers jaws.
The patented feature is the arrangement of flat faces and notches to grip multiple sizes of square nuts. |
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