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| All Patents in class 192/149 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,010,366 | Aug. 06, 1935 | B.A. Kearns | Grinding Machine | grinding machines | |
| 4,312,435 | Jan. 26, 1982 | L.J. Hollo | Safety devices for mechanically operated apparatus such as a punch press | punch presses | |