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| Patents for John Howard Lentell | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,978,714 | Oct. 30, 1934 | J.H. Lentell | Lubricating Means | internal combustion engine lubrication | |
| 2,472,288 | Jun. 07, 1949 | J.H. Lentell, W.W. Schettler, L.E. Endsley | Piston | pistons | |