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| All Patents in class 279/902 | |||||
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| Number | Date | Patentee | Title | Type | |
| 323,179 | Jul. 28, 1885 | W. Mason | Drill Chuck | drill press chucks | |
| 323,181 | Jul. 28, 1885 | W. Mason | Drill Chuck | drill press chucks | |
| 2,719,722 | Oct. 04, 1955 | A.E. Nickless | Quick Change Tool Holder | milling machine tools | |
| 2,910,302 | Oct. 27, 1959 | E.J. Ondeck | Cam Chuck | drill press chucks | |