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| All Patents in class 198/346.2 | |||||
| Number | Date | Patentee | Title | Type | |
| 4,673,076 | Jun. 16, 1987 | C.E. Mattson | Rotary Shuttle for Machine Tools | workpiece changers and storage mechanisms | |
| 5,191,958 | Mar. 09, 1993 | G. Tolocko | Automatic Framing System | workpiece changers and storage mechanisms | |
| 5,251,739 | Oct. 12, 1993 | G. Tolocko | Automatic Framing System | workpiece changers and storage mechanisms | |