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All Patents in class 33/475 | |||||
Number | Date | Patentee | Title | Type | |
21,861 | Oct. 19, 1858 | L. Yale, Jr. | Square Adjustment | squares | |
296,157 | Apr. 01, 1884 | W.A. Gabriel | Try Square | try squares | |
707,301 | Aug. 19, 1902 | W. Chesterman | Engineer's Square | squares | |
761,929 | Jun. 07, 1904 | C.L. Weld | Try Square | try squares | |
2,126,896 | Aug. 16, 1938 | S. Koller | Angle Plate | angle bars and angle plates | |
4,096,634 | Jun. 27, 1978 | A. Gudel | Method and Device for the Measurement of Angles on Space Planes | measurement gauges |