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| Patents for Eric R. Lindenborg | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,714,790 | Aug. 09, 1955 | E.R. Lindenborg | Flexible abrasive rope | sanding machines | |
| 2,763,104 | Sep. 18, 1956 | E.R. Lindenborg | Flexible abrasive brush | sanding machines | |