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| Patents for Alexander Van Zanten | |||||
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| Number | Date | Patentee | Title | Type | |
| 618,894 | Feb. 07, 1899 | M. Morton, H.E. Morton | Key-seat-cutting machine | key seating machines | |
| 682,218 | Sep. 10, 1901 | H.E. Morton, M. Morton | Shaper | metal shapers | |
| 848,191 | Mar. 26, 1907 | H.E. Morton, M. Morton | Attachment for Draw Cut Shapers | metal shaper accessories | |