US Patent: 567,405
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| Adjustable Socket Wrench
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Patentee:
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| Robert McDonald (exact or similar names) - Magalia, CA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 09, 1896 |
| Granted: |
Sep. 08, 1896 |
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Patent Pictures:
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Robert McDonald patent September 8, 1896 |
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Stan Schulz
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Description: |
| The adjusting nut threaded on the main shank moves a collar which has slots for the tail portions of the pivoting jaws.
The shank has a tang for insertion in a brace.
Corresponding Canadian patent no. CA-54,830 was issued February 3, 1897. |
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