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| Patents for Luben Nikoloff | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,971,230 | Aug. 21, 1934 | L. Nikoloff | Thread cutting die | tap wrenches and die stocks | |
| 1,988,046 | Jan. 15, 1935 | L. Nikoloff | Thread cutting die | tap wrenches and die stocks | |