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| All Patents in class 74/598 | |||||
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| Number | Date | Patentee | Title | Type | |
| 344,930 | Jul. 06, 1886 | D.A. Woodbury | Cranked Shaft | steam engine crank rods | |
| 359,290 | Mar. 15, 1887 | J.B. Stanwood | Manufacture of crank-shafts | steam engine crank rods | |
| 1,136,376 | Apr. 20, 1915 | W. Spacke, D.T. Brownlee, F.W. Spacke | Crank Shaft | crankshafts | |