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| Patents for R. J. Marshall | |||||
| Number | Date | Patentee | Title | Type | |
| 393,068 | Nov. 20, 1888 | E. Highlander | Calf Weaner | animal weaners | |
| D19,689 | Mar. 04, 1890 | C. Ottinger | Design for a Hammer | ball pein hammers | |
| 438,992 | Oct. 21, 1890 | C.L. Edwards | Bolt Holder | ||