US Patent: 403,518
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Hinge Mortiser
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Patentees:
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William Cooper (exact or similar names) - Minneapolis, Hennepin County, MN |
Alonzo Milliken (exact or similar names) - Minneapolis, Hennepin County, MN |
George W. Bishop (exact or similar names) - Minneapolis, Hennepin County, MN |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Nov. 02, 1888 |
Granted: |
May 21, 1889 |
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Joel Havens
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