US Patent: 1,287,203
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Drill Tube Section
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Patentees:
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Peter Boyd (exact or similar names) - Beaver, PA |
Augustus M. Saunders (exact or similar names) - McKeesport, PA |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Mar. 26, 1918 |
Granted: |
Dec. 10, 1918 |
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Joel Havens
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Description: |
D. Anthony Umica - patent attorney |
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