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| Patents for Delbert A. Berean | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,647,980 | Nov. 08, 1927 | W.W. Trevor, D.A. Berean | Machine for operating on barrels or other containers | cooper | |
| 1,648,372 | Nov. 08, 1927 | W.W. Trevor, D.A. Berean | Machine for operating on barrels and the like | cooper | |