Number | Date | Country | Kind |
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196 42 865 | Oct 1996 | DE |
This application is a divisional application of U.S. application Ser. No. 09/284,338, filed on Apr. 9, 1999, now U.S. Pat. No. 6,180,655, which is the national stage application of PCT/EP97/05473, filed Apr. 9, 1999.
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2922794 | Model et al. | Jan 1960 | A |
3839349 | Wagner et al. | Oct 1974 | A |
Number | Date | Country |
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2074561 | Nov 1981 | GB |
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