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| Patents for George C. Cottrell | |||||
| Picture | Number | Date | Patentee | Title | |
![]() | 617,473 | Jan. 10, 1899 | G.C. Cottrell, G.T. Parsley | Hand-powered timber mortising machine | |
![]() | CA-66,215 | Feb. 14, 1900 | G.C. Cottrell, G.T. Parsley | Boring and mortising machine | |