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| Patents for J. D. H. Bergen | |||||
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| Number | Date | Patentee | Title | Type | |
| 996,953 | Jul. 04, 1911 | V.J. Wahlstrom | Chuck | ||
| 996,954 | Jul. 04, 1911 | V.J. Wahlstrom | Chuck | ||
| 996,955 | Jul. 04, 1911 | V.J. Wahlstrom | Chuck | ||
| 1,026,187 | May 14, 1912 | V.J. Wahlstrom | Chuck | ||