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| Patents for Norman B. Wienke | |||||
| Number | Date | Patentee | Title | Type | |
| 2,367,100 | Jan. 09, 1945 | O. Cullman, L.H. Hornbrook, N.B. Wienke | Sprocket milling machine | ||
| 2,436,694 | Feb. 24, 1948 | O. Cullman, N.B. Wienke, L.H. Hornbrook, Jr. | Detachable sprocket wheel | ||