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| All Patents in class 74/5.7 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,148,154 | Jul. 27, 1915 | W. Dieter | Gyroscopic device | torpedoes | |
| 1,810,646 | Jun. 16, 1931 | W. Dieter | Gyroscopic steering mechanism | torpedoes | |