Number | Date | Country | Kind |
---|---|---|---|
43 37 637.1 | Nov 1993 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3860922 | Wagner | Jan 1975 | |
3970824 | Walton et al. | Jul 1976 | |
5164985 | Nysen et al. | Nov 1992 | |
5410315 | Huber | Apr 1995 |
Entry |
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German publication "Trovan Electronic Identification System". |