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| Number | Title | Issue Date |
| 7284760 | Holding device for disk-shaped objects Semiconductor technology requires the use of object holders, which are capable of holding wafers securely, also during rotation. In order to save time and expense, such holders should be suitable for integration directly into a processing facility, wherever possible... | 10/23/2007 |
| 4667970 | Long-stroke high-force chuck Chuck provides for each jaw an action bar extending substantially longitudinally of the chuck axis and rockable in an action plane radiating from the chuck axis and intersecting the jaw, and a pair of first and second slides for each action bar, with said... | 05/26/1987 |
