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| Patents for Gerald J. Lindroth | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-285,926 | Dec. 25, 1928 | G.J. Lindroth, E.A. Hall | Cylinder Hone | honing tools | |
| 1,696,477 | Dec. 25, 1928 | G.J. Lindroth, E.A. Hall | Cylinder Hone | honing tools | |