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| Patents Granted on 1949-09-20 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,482,168 | Sep. 20, 1949 | F.P. Grutzner | Vehicle Truck and Body Interlock | diesel locomotives | |
| 2,482,302 | Sep. 20, 1949 | O.M. Summers | Filtering System | coolant apparatus | |
| 2,482,676 | Sep. 20, 1949 | C.W. Lanter | Handle switch housing | electric switches | |