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| Patents for J. Leukart Machine Co., Inc. | |||||
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| Number | Date | Patentee | Title | Type | |
| D183,297 | Aug. 05, 1958 | G.H. Brown | Impacting machine or similar article | ||
| 2,856,828 | Oct. 21, 1958 | G.H. Brown, E.G. Lewis | Impacting machine | compacting machines | |
| 2,894,435 | Jul. 14, 1959 | G.H. Brown | Impacting machine | compacting machines | |