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Patents for George C. Cottrell | |||||
Number | Date | Patentee | Title | Type | |
617,473 | Jan. 10, 1899 | G.T. Parsley, G.C. Cottrell | Hand-powered timber mortising machine | portable timber mortisers | |
CA-66,215 | Feb. 14, 1900 | G.C. Cottrell, G.T. Parsley | Boring and mortising machine | portable timber mortisers |