Number | Date | Country | Kind |
---|---|---|---|
196 19 558.6 | May 1996 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2451728 | Gardner et al. | Oct 1948 | |
2660219 | Haas et al. | Nov 1953 | |
2845213 | Tamarin | Jul 1958 | |
3059690 | Nyborg | Oct 1962 | |
3218961 | Kraft et al. | Nov 1965 | |
3484325 | Pendleton | Dec 1969 | |
3804697 | Jacobi | Apr 1974 | |
4067761 | Shirley | Jan 1978 | |
4270965 | Torterotot et al. | Jun 1981 | |
4288967 | Seko et al. | Sep 1981 | |
4666550 | Spiers et al. | May 1987 | |
4717372 | Herrington | Jan 1988 | |
4721501 | Herrington | Jan 1988 | |
4746391 | Heyse et al. | May 1988 | |
4808150 | Herrington et al. | Feb 1989 | |
5411625 | Focke et al. | May 1995 |
Number | Date | Country |
---|---|---|
245492 | Feb 1966 | AUX |
703063 | Sep 1995 | EPX |
819497 | Oct 1951 | DEX |
1157765 | Nov 1963 | DEX |
1511626 | Sep 1969 | DEX |
7340444 | Nov 1973 | DEX |
2407447 | Aug 1975 | DEX |
2237877 | May 1978 | DEX |
3821266 | Jan 1989 | DEX |
9012482 | Dec 1990 | DEX |
4215690 | Nov 1993 | DEX |
961805 | Jun 1964 | GBX |
Entry |
---|
Walsroder Offnungshilfen, Wolff Walsrode AG, Walsrode, S. 1-9, Nov. 1984. |
JP 1-171846 A., In: Patents Abstracts of Japan, M-877, Oct. 6, 1989, vol. 13, No. 446. |