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| Patents for Einar A. Hanson, Executor | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,570,831 | Jan. 26, 1926 | C.E. Whitney, Executor, E.A. Hanson, Executor, B.M. Hanson, deceased (Estate of) | Measuring Device | micrometer attachments | |