US Patent: 1,241,143
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Bit Brace Extension
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Patentee:
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Harry E. Parker (exact or similar names) - New Britain, CT |
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Patent Dates:
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Applied: |
Jan. 17, 1917 |
Granted: |
Sep. 25, 1917 |
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Jeff Joslin (dm)
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Description: |
Reduced cost construction and interchangeable jaws are cited as objects of the patent. Known example also marked by Winchester. |
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