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| Patents for W. M. Twitchell | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-35,149 | Oct. 06, 1890 | N.W. Moodey | Fuse Cap Fastener | pliers | |
| CA-35,261 | Oct. 22, 1890 | A.G. Lawrence | Pulley support | industrial machine pulleys and belt drive mechanisms | |
| CA-40,796 | Oct. 24, 1892 | C.A. McIntosh | Wrenches | ratchet wrenches | |
| 486,300 | Nov. 15, 1892 | G.W. Scheid | Wrench | wrench combination tools | |