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| All Patents in class 157/13 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 422,323 | Feb. 25, 1890 | J.W. Strouse | Apparatus for truing the periphery of circular saws | ||
| 1,743,125 | Jan. 14, 1930 | G.W. Fleming | Portable device for regrooving solid tires | ||
| 2,381,687 | Aug. 07, 1945 | E.A. Allen, R.S. Pyne | Drive for oscillating grinders | ||
| 3,120,723 | Feb. 11, 1964 | W.F. Jessup | Machine Tool Mechanism for the Formation of Circular Contours | ||