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| Number | Title | Issue Date |
| 6376846 | Method of providing radiation therapy to the head of a patient An adjustable head rest for supporting the head of a patient during radiation therapy is shown. The head rest includes a table plate, an adjustable lead screw rotatable coupled to the table plate, a base plate threadably coupled to the lead screw and a un... | 04/23/2002 |
| 6282739 | Adjustable head rest An adjustable head rest for supporting the head of a patient during radiation therapy is shown. The head rest can include a table plate, an adjustable lead screw rotatably coupled to the table plate, a base plate threadably coupled to the lead screw and a... | 09/04/2001 |
