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| Patents for Phillip J. Robischung | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,153,306 | Oct. 20, 1964 | P.J. Robischung | Belt abrader | ||
| 3,209,495 | Oct. 05, 1965 | P.J. Robischung | Belt abrader | ||
| 3,209,496 | Oct. 05, 1965 | P.J. Robischung | Belt abrader adjustment mechanism | ||