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| Patents for Crane Co. | |||||
| Number | Date | Patentee | Title | Type | |
| 335,193 | Feb. 02, 1886 | J.T. Hayden | Pipe Wrench | pipe wrenches | |
| 489,224 | Jan. 03, 1893 | W.W. Doolittle | Tapping-machine | tapping machines | |
| 785,351 | Mar. 21, 1905 | W.W. Doolittle | Tool Holder | drilling and boring tool holders | |