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| Patents for Han-Chang Chung | |||||
| Number | Date | Patentee | Title | Type | |
| 4,208,718 | Jun. 17, 1980 | H. Chung | Method for Optimizing the Operation of Computer Controlled Machine Tool | numerically controlled milling machines | |
| CA-1,214,850 | Dec. 02, 1986 | L.D. Ostby, H. Chung, E.E. Kirkham, R. Johnstone | Automatic dynamic error compensator | machine tool controls | |
| 4,628,441 | Dec. 09, 1986 | L.D. Ostby, H. Chung, E.E. Kirkham, R. Johnstone | Automatic Dynamic Error Compensator | metalworking machine mechanisms | |