US Patent: D53,597
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| Wrench
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Patentee:
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| Jacob A. Marcmann (exact or similar names) - Irvington, NJ |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 24, 1919 |
| Granted: |
Jul. 15, 1919 |
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Patent Pictures:
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Jacob A. Marcmann patent July 15, 1919 |
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Stan Schulz
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Description: |
| The design is a "dog-bone" with 5 hex sizes on each end. Wrenches of this type were widely distributed. They differ somewhat in appearance, so probably do not relate directly to this design patent. |
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