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| All Patents in class 403/261 | |||||
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| Number | Date | Patentee | Title | Type | |
| 173,126 | Feb. 08, 1876 | S.W. Little | Improvement in securing saws to spindles | circular saws | |
| 262,211 | Aug. 08, 1882 | J. Emerson | Chuck for Centering and Securing Pulleys to Shafts | mandrels and arbors | |
| 722,909 | Mar. 17, 1903 | W. Runge | Wheel-Attaching Device | metal lathes | |
| 868,813 | Oct. 22, 1907 | C. Scheibenstock, Jr. | Measuring Instrument | measuring apparatus | |
| 1,049,949 | Jan. 07, 1913 | G.E. Wadleigh | Keying Device for Blades | threshers and thrashers | |