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| Patents for Erich R. Zademach | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,628,818 | May 17, 1927 | E.R. Zademach | Washing machine | ||
| 1,853,528 | Apr. 12, 1932 | E.R. Zademach | Washing machine | ||
| 1,878,568 | Sep. 20, 1932 | E.R. Zademach | Washing machine | ||