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| All Patents in class 239/597 | |||||
| Picture | Number | Date | Patentee | Title | |
| 596,940 | Jan. 04, 1898 | W.H. Millspaugh | Cleansing apparatus for paper-making machines | ||
| 1,868,518 | Jul. 26, 1932 | A.A. Breuer | Sprayer | ||