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| Patents for James E. Kilzer | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,740,986 | Dec. 24, 1929 | J.E. Kilzer | Expansion reamer | reamers | |
| 1,881,665 | Oct. 11, 1932 | J.E. Kilzer | Expansion boring tool | boring heads | |