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| Patents for Niels C. Simonsen | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,137,093 | Apr. 27, 1915 | N.C. Simonsen | Rod-cutter | metal shearing machines | |
| 1,595,254 | Aug. 10, 1926 | N.C. Simonsen | Cow hopple | animal restraining devices | |
| 1,800,572 | Apr. 14, 1931 | N.C. Simonsen | Mounting for oil gauges and the like | ||