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| Patents for Philip J. Robischung | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 2,900,766 | Aug. 25, 1959 | P.J. Robischung | Machine tool | |
| 2,919,522 | Jan. 05, 1960 | P.J. Robischung | Electrolytic grinding machine | ||
| 2,922,258 | Jan. 26, 1960 | R.M. Bell, P.J. Robischung, L.C. Hammond, M.M. Bass | Grinder with oscillating head | ||
| 2,935,824 | May 10, 1960 | P.J. Robischung | Machine tool | ||