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| All Patents in class 74/574.2 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,107,731 | Aug. 18, 1914 | L.H. Vold | Means for Eliminating Vibrations in Rotary Shafts | ||
| 2,714,823 | Aug. 09, 1955 | R.R. Adams, A.H. Dall | Vibration Dampener | ||