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Patents for W. P. Ricker | |||||
Number | Date | Patentee | Title | Type | |
CA-27,657 | Sep. 22, 1887 | D.R. Porter | Pipe Wrench | quick adjust wrenches | |
389,899 | Sep. 25, 1888 | D.R. Porter | Pipe Wrench | quick adjust wrenches |