US Patent: 1,378,035
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| Wrench
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Patentee:
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| George C. Kotrba (exact or similar names) - Chicago, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 12, 1920 |
| Granted: |
May 11, 1921 |
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Patent Pictures:
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Patent 1,378,035 -- edited from PATENT GAZETTE |
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Stan Schulz
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Description: |
| Combination quick and screw adjust nut wrench; a wrench collector has constructed an interpretation of this patent.
An item in Sept. 1922 POPULAR MECHANICS does not make it clear if Kotrba was producing the wrench or had merely constructed a prototype. |
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