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| All Patents in class 417/184 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,583,090 | May 04, 1926 | R.M. Ostermann | Injector | water injectors | |
| 1,583,363 | May 04, 1926 | R.M. Ostermann | Injector | water injectors | |
| 1,596,523 | Aug. 17, 1926 | L. Friedmann | Exhaust Steam Injector | water injectors | |
| 2,389,656 | Nov. 27, 1945 | E. Henkel, A. Williams | Injector | water injectors | |