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| Patents for D. J. Crosby | |||||
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| Number | Date | Patentee | Title | Type | |
| 712,815 | Nov. 04, 1902 | A.B. Landis | Work-rest for grinding-machines | grinders | |
| 734,897 | Jul. 28, 1903 | A.B. Landis | Automatic grinding-machine | grinders | |
| 771,077 | Sep. 27, 1904 | A.B. Landis | Change-speed gearing | industrial machine gearing | |
| 1,016,751 | Feb. 06, 1912 | A.B. Landis | Grinding-machine | grinders | |