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| Patents for D. C. Walter | |||||
| Number | Date | Patentee | Title | Type | |
| 854,333 | May 21, 1907 | G. Cousino | Scribe Gage | marking gauges | |
| 913,871 | Mar. 02, 1909 | G.D. Baightel | Combined Siding Marker and Gage | clapboard markers | |