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| All Patents in class 74/89.24 | |||||
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| Number | Date | Patentee | Title | Type | |
| 528,211 | Oct. 30, 1894 | H.G. Sedwick | Slow Motion Attachment for Microscopes | ||
| 1,333,707 | Mar. 16, 1920 | C.A. Dies | Lathe Dog and the Like | lathe dogs | |