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| Number | Title | Issue Date |
| 5924974 | Elongated radioactive element to be attached to an end of an elongated wire-shaped element An elongated radioactive element to be fastened to one end of an elongated wire-shaped element, and provided with a front retaining part, a connecting part, and a rear retaining part, as well as segment-shaped elements which are radioactive or are to be m... | 07/20/1999 |
| 5631945 | Slit radiography apparatus A slit radiography apparatus is provided with an absorption device comprising electrically controllable piezoelectric tongues. Upper and/or lower deflections of the tongues are limited to a maximum by trips outside the X-ray fan beam. More than one strip ... | 05/20/1997 |
| 5074899 | Method for manufacturing an anti-veiling-glare input window for an optical device Anti-veiling-glare glass input window for an optical device. The window has throughout a shallow surface layer over its peripheral surfaces radiation absorbent free-metal-induced color centers. A method for preparation of such a window, which is particula... | 12/24/1991 |