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Patents for Alonzo J. Q. Knowlton
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
777,605Dec. 13, 1904A.J. Knowlton, O.B. CreamerTaper Caliperscalipers
777,606Dec. 13, 1904A.J. Knowlton, O.B. CreamerTaper Caliperscalipers
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