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| All Patents in class 279/4.02 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,690,541 | Nov. 06, 1928 | A.R. Kuzelewski | Fluid or air controlling and operating device for machine tools or the like | metalworking machine mechanisms | |
| 3,251,604 | May 17, 1966 | B.R. Better | Hydraulic Chuck | chucks | |