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196 49 681 | Nov 1996 | DEX |
Number | Name | Date | Kind |
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3932316 | Sagel et al. | Jan 1976 | |
3956379 | Beaver | May 1976 |
Number | Date | Country |
---|---|---|
2 024 203 | Jan 1980 | GBX |
WO 9429421 | Dec 1994 | WOX |
Entry |
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