| Patents for Fritz Paul Grutzner |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 2,123,358 | Jul. 12, 1938 | F.P. Grutzner | Engine Silencing Hood | mufflers |
| 2,189,895 | Feb. 13, 1940 | F.P. Grutzner | Heating and Ventilating System | cooling apparatus |
| 2,208,157 | Jul. 16, 1940 | F.P. Grutzner | System for Recovering and Utilizing Waste Heat | exhaust mechanisms |
| 2,266,193 | Dec. 16, 1941 | F.P. Grutzner | Heating System | exhaust mechanisms |
| D149,553 | May 11, 1948 | F.P. Grutzner | Locomotive Body | diesel locomotives |
| 2,482,168 | Sep. 20, 1949 | F.P. Grutzner | Vehicle Truck and Body Interlock | diesel locomotives |
