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| Patents for Helmut W. Schumann | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 2,532,823 | Dec. 05, 1950 | H.W. Schumann | Motor tool | |
| 2,696,569 | Dec. 07, 1954 | H.W. Schumann | Motor Tool | ||
 | 2,779,883 | Jan. 29, 1957 | H.W. Schumann | Motor tool | |