Number | Name | Date | Kind |
---|---|---|---|
3764446 | Martin | Oct 1973 | |
4188153 | Taylor | Feb 1980 | |
4785577 | Lederbauer | Nov 1988 |
Number | Date | Country |
---|---|---|
2705375 | Jun 1978 | DEX |
372443 | Feb 1983 | DEX |
7714213 | Jun 1979 | NLX |
1368772 | Oct 1974 | GBX |
Entry |
---|
German Patentschrift DD 224 070 A1, 3 pages Dwgs., 2 pages specification. |