Number | Date | Country | Kind |
---|---|---|---|
199 16 946 | Apr 1999 | DE |
Number | Name | Date | Kind |
---|---|---|---|
2499365 | De Groote et al. | Mar 1950 | A |
3830850 | Stratton | Aug 1974 | A |
4032514 | Buriks et al. | Jun 1977 | A |
4060501 | Naylor et al. | Nov 1977 | A |
4117031 | Macenka et al. | Sep 1978 | A |
Number | Date | Country |
---|---|---|
24 45 873 | Apr 1976 | DE |
Entry |
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EPO Search Report, (Mar./2001), European Patent Office, (Hague, Netherlands). |