US Patent: 1,492,478
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| Quick Action Wrench
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Patentee:
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| Joseph J. Markovich (exact or similar names) - Uniontown, PA |
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Patent Dates:
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| Applied: |
Jul. 03, 1922 |
| Granted: |
Apr. 29, 1924 |
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Patent Pictures:
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Patent 1,492,478 - edited drawing |
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Stan Schulz
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Description: |
| Improvement to the design in 1,147,181, stabilizing the movable jaw, making the adjusting means more convenient, and adding "slanted teeth."
A known example of the QUICK ACTION WRENCH includes a misleading July 20, 1920 patent date marking. The company formed in 1922. |
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