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| Patents for David R. Bowen | |||||
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| Number | Date | Patentee | Title | Type | |
| 457,395 | Aug. 11, 1891 | D.R. Bowen | Cane Mill | sugar cane apparatus | |
| 1,670,097 | May 15, 1928 | F. Farrel, Jr., J.M. Dardis, D.R. Bowen | Cane Grinding Mill | sugar cane apparatus | |