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| Patents for Do All Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,811,179 | May 21, 1974 | W.T. Anderson | Tool Changer | milling machines | |
| 3,932,924 | Jan. 20, 1976 | W.T. Anderson | Method of Changing Tools | milling machines | |