US Patent: 536,116
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Extensible bit-stock
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Patentees:
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Horace G. Worthington (exact or similar names) - Washington, DC |
William Wheeler (exact or similar names) - Washington, DC |
USPTO Classifications: |
81/30 |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Nov. 17, 1894 |
Granted: |
Mar. 19, 1895 |
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Jeff Joslin
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