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| All Patents in class 464/112 | |||||
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| Number | Date | Patentee | Title | Type | |
| 343,910 | Jun. 15, 1886 | J. Leigh | Traction Engine | traction engine propulsion components | |
| 1,988,967 | Jan. 22, 1935 | G.W. Emrick | Clutch device | tapping heads and chucks | |