Number | Date | Country | Kind |
---|---|---|---|
42 18 615.3 | Jun 1992 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
1914342 | Larsen | Jun 1933 | |
3675799 | Steed et al. | Jul 1972 | |
5238348 | Reimer | Aug 1993 |
Number | Date | Country |
---|---|---|
0366559 | Feb 1990 | EPX |
2438724 | Sep 1980 | FRX |
2653812 | Mar 1991 | FRX |
1431582 | Mar 1969 | DEX |
3729139 | Oct 1988 | DEX |
4218615 | Jul 1993 | DEX |
Entry |
---|
Scheffler, Die Technik, vol. 1, Jan. 1970, pp. 13-17. |