Number | Date | Country | Kind |
---|---|---|---|
97202663 | Aug 1997 | EPX |
Number | Name | Date | Kind |
---|---|---|---|
5593818 | Kawamoto | Jan 1997 | |
5688636 | Kiekens | Nov 1997 |
Number | Date | Country |
---|---|---|
0 631 177 A1 | Dec 1994 | EPX |
0 664 480 A2 | Jul 1995 | EPX |
0 747 756 A1 | Dec 1996 | EPX |
Entry |
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H. Laver: "The Use of UV-Absorbers in X-Ray Photographic Films," Research Disclosure No. 248, Dec. 1984, Havant GB, p. 598, XP002054694. |