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| All Patents in class 279/4.04 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,146,193 | Jul. 13, 1915 | W.L. Miller | Fluid-pressure chuck-actuating device | metal lathe accessories and attachments | |
| 1,815,562 | Jul. 21, 1931 | L.E. Godfriaux | Hydraulic Chuck | metal lathe chucks | |
| 3,361,433 | Jan. 02, 1968 | W.B. Holdridge | Collet Closer | collet closers | |