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| All Patents in class 483/50 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,591,920 | Jul. 13, 1971 | E.F. Drechsler, W.E. Brainard | Tool Change Mechanism with Magazine Positioning Means | tool changers and storage mechanisms | |
| 3,949,462 | Apr. 13, 1976 | D.E. deCaussin | Removable Attachment for Automatic Milling Machines | milling machines | |