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Patents for David H. Coles | |||||
Number | Date | Patentee | Title | Type | |
424,274 | Mar. 25, 1890 | D.H. Coles, J.L. Coles | Parallel Jaw Tool | pliers | |
933,960 | Sep. 14, 1909 | D.H. Coles | Internal Combustion Engine | exhaust mechanisms |