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| Patents for Marga Grünberg | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,100,740 | Jun. 23, 1914 | E. Jagenberg | Box Making Machine | cardboard box making machines | |
| 1,108,176 | Aug. 25, 1914 | A. Hormel | Grinding-machine | sanding machines | |