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| All Patents in class 239/433 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,170,198 | Feb. 01, 1916 | F.G. Chambers, A. Winter, J.E. Sweet | Sand Blast Device | ||
| 4,545,157 | Oct. 08, 1985 | A.C. Saurwein | Center feeding water jet/abrasive cutting nozzle assembly | ||