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| All Patents in class 901/16 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,558,506 | Dec. 17, 1985 | E.J. Kielma | Numerically Controlled Automatic Tool Changing Machining Center Having a Bar-type Spindle | tool changers and storage mechanisms | |
| 5,616,917 | Apr. 01, 1997 | Y. Dai | Device for Measuring an Angle Between Pivotally-Connected Members | ||