US Patent: 703,578
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Gear Tumbler
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Patentees:
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Bengt M. W. Hanson (exact or similar names) - Hartford, Hartford County, CT |
Frederick W. Gordon (exact or similar names) - Hartford, Hartford County, CT |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Mar. 24, 1902 |
Granted: |
Jul. 01, 1902 |
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Joel Havens
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