US Patent: D34,540
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| Design For A Wrench
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Patentee:
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| Frank H. Engstrom (exact or similar names) - Cambridge Springs, PA |
| USPTO Classifications: |
| D8/28 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 15, 1901 |
| Granted: |
May 21, 1901 |
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Patent Pictures:
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Frank H. Engstrom design patent May 21, 1901 |
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Stan Schulz
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Description: |
| The design shows a combination hex and octagon box end wrench, with a flat oval shank and round handle.
Term of patent 7 years. |
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