Number | Name | Date | Kind |
---|---|---|---|
3878679 | Sievenpiper | Apr 1975 | |
3987623 | Bianchetta | Oct 1976 | |
3987626 | Bianchetta | Oct 1976 | |
4354420 | Bianchetta | Oct 1982 | |
4426194 | Pollman | Jan 1984 | |
4642984 | Dixen | Feb 1987 | |
4693272 | Wilke | Sep 1987 | |
4719753 | Kropp | Jan 1988 | |
4779419 | Crosser | Oct 1988 | |
4813235 | Miller | Mar 1989 |
Number | Date | Country |
---|---|---|
2143975 | Feb 1973 | FRX |
2548290 | Jan 1985 | FRX |
Entry |
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SAE Technical Paper No. 891941, dated Sep. 11-14, 1989 and entitled "The Synchro Control System for Mobile Applications", by Herbert Seelman, W. Germany. |