US Patent: 877,592
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| Head for Boring-Bits
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Patentees:
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| William Gale Parry (exact or similar names) - Peterborough, ON Canada |
| Patrick Joseph Creedon (exact or similar names) - Peterborough, ON Canada |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 09, 1907 |
| Granted: |
Jan. 28, 1908 |
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Patent Pictures:
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1 | 2
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Jeff Joslin (dm)
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