US Patent: AI84
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Doorknob shank
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Patentees:
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Calvin Adams (exact or similar names) - Unknown, Unknown |
John Jay Roggen (exact or similar names) - Unknown, Unknown |
Laureston R. Livingston (exact or similar names) - Unknown, Unknown |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Granted: |
Dec. 11, 1847 |
USPTO (New site tip) Google Patents
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Jeff Joslin
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