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| Patents for Otto A. Schilly | |||||
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| Number | Date | Patentee | Title | Type | |
| 819,366 | May 01, 1906 | H.A. Moyer | Securing means for the hangers of type-writing machines | typewriters | |
| 933,181 | Sep. 07, 1909 | O.C. Kavle | Ribbon mechanism for type-writing machines | typewriters | |
| 944,734 | Dec. 28, 1909 | O.C. Kavle | Ribbon mechanism for type-writing machines | typewriters | |