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| All Patents in class 82/47 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,655,588 | Jan. 10, 1928 | K. Baumann | Sawing Mechanism Adapted to Operate With Rotating Material | ||
| 2,109,786 | Mar. 01, 1938 | D. Taft | Method of and Apparatus for Operating a Cutting Tool | ||
| 3,090,266 | May 21, 1963 | E.K. Wagner | Apparatus to Provide Constant Facing Speed | ||
| 4,452,112 | Jun. 05, 1984 | J.A. Alexander | Method of Parting Metallic Rings | ||