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| Patents for Richard L. Schroeder | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,125,186 | Jun. 30, 1992 | R.L. Schroeder | Drill Grinding Machine | drill grinders | |
| 5,179,809 | Jan. 19, 1993 | R.L. Schroeder | Drill Grinding Machine | drill grinders | |