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| Patents for Lincoln Electric Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,917,531 | Jul. 11, 1933 | J.F. Lincoln | Electric Arc Welding Apparatus | welding machines | |
| 1,971,074 | Aug. 21, 1934 | G.G. Landis, J.F. Lincoln | Current Generation for Arc Welding and the Like | electric generators | |