Number | Date | Country | Kind |
---|---|---|---|
98810593 | Sep 1998 | EP |
Number | Name | Date | Kind |
---|---|---|---|
4231761 | Meyer-Kahrweg | Nov 1980 | |
4665688 | Schiffers et al. | May 1987 |
Number | Date | Country |
---|---|---|
36 18 745 | Dec 1986 | DE |
37 31 627 | Mar 1989 | DE |
0 379 108 | Jul 1990 | EP |
WO 98 27004 | Jun 1998 | WO |
Entry |
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European Search Report dated Dec. 3, 1998. |