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| Patents for Carlstedt Ragnar Leonard | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,903,916 | Sep. 15, 1959 | C.R. Leonard | Apparatus for preventing vibration of boring bars | boring and turning machines | |
| 2,938,410 | May 31, 1960 | C.R. Leonard | Seal arrangement | boring and turning machines | |