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| All Patents in class 33/43 | |||||
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| Number | Date | Patentee | Title | Type | |
| 909,686 | Jan. 12, 1909 | C.O. Schellenbach | Protractor | protractors | |
| 1,004,173 | Sep. 26, 1911 | J. Kline, J. Joss | Combination Rule, Bevel and Marking Gage | bevel squares | |
| 1,129,707 | Feb. 23, 1915 | A.H. Miller | Gage | rule attachments | |
| 1,131,923 | Mar. 16, 1915 | E.V. Frailey | Machinist's Scribe | marking gauges | |
| 1,909,347 | May 16, 1933 | E.A. Hall | Cylinder Working Tool | reamers | |