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| Patents for G. F. De Wein | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 815,312 | Mar. 13, 1906 | C.G. Sprado | Adjustable piston-rod and cross-head connection | |
 | 834,788 | Oct. 30, 1906 | J. Wilson | Steam-turbine | |
 | 835,471 | Nov. 06, 1906 | M. Rotter | Steam-turbine | |
 | 863,115 | Aug. 13, 1907 | R.D. Tomlinson | Condenser | |
 | 863,125 | Aug. 13, 1907 | W.H. Whiteside | Elastic-fluid turbine | |
 | 923,593 | Jun. 01, 1909 | C.G. Sprado | Crane | |
 | 923,594 | Jun. 01, 1909 | C.G. Sprado | Gas Engine | |
 | 954,057 | Apr. 05, 1910 | C.G. Sprado | Regulating Device | |