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| Patents for C. G. Sprado | |||||
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| Number | Date | Patentee | Title | Type | |
| 775,252 | Nov. 15, 1904 | F.G. Schulze-Pillot | Disconnecting suspension device for heavy machine parts | ||
| 867,407 | Oct. 01, 1907 | J.F. Patitz | Turbine-wheel | rotary steam engines | |