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Patents for William C. Duncan | |||||
Number | Date | Patentee | Title | Type | |
686,468 | Nov. 12, 1901 | C. Morrill (deceased), S.C. Morrill | Saw-Set | saw sets | |
703,440 | Jul. 01, 1902 | C. Morrill (deceased), S.C. Morrill | Saw-Set | saw sets |