US Patent: 791,767
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Push-drill
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Patentee:
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Zachry T. Furbish (exact or similar names) - Philadelphia, PA |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Sep. 22, 1903 |
Granted: |
Jun. 06, 1905 |
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George Langford
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Description: |
This patent takes the the #40 and 41 Yankee drill and adds a spring tension adjustment to become a #44. |
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