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| Patents for Lorenz A. Leifer | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,627,194 | Feb. 03, 1953 | C.H. Johnson, L.A. Leifer | Profile Turning and Boring Lathe | metal lathes | |
| 3,072,416 | Jan. 08, 1963 | L.A. Leifer | Force Amplifying Collet Chuck | metal lathe chucks | |