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| All Patents in class 318/597 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,475,997 | Nov. 04, 1969 | J.A. Wohfeil | Method and Apparatus for Controlling Motions of a Drilling Cutter or the Like | machine tool controls | |
| 3,475,998 | Nov. 04, 1969 | C.J. Schneider, D.J. Steiner | Method and Apparatus for Controlling the Motion of a Reciprocable Tool Element or the Like | machine tool controls | |