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| Patents for Eugene C. Brull | |||||
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| Number | Date | Patentee | Title | Type | |
| 982,791 | Jan. 31, 1911 | E.C. Brull | Filing-machine | filing machines | |
| 1,322,873 | Nov. 25, 1919 | E.C. Brull | Filing-machine | filing machines | |