Number | Name | Date | Kind |
---|---|---|---|
3952364 | Lautenschlaeger | Apr 1976 | |
4045841 | Rock et al. | Sep 1977 | |
4604769 | Rock et al. | Aug 1986 | |
4776061 | Franco | Oct 1988 | |
4819298 | Lautenschlager | Apr 1989 | |
4987640 | Lin | Jan 1991 |
Number | Date | Country |
---|---|---|
2601809 | Jul 1977 | DEX |
1587901 | Apr 1981 | GBX |
Entry |
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U.K. Patent Application No. 2,178,791A; pub. Feb. 18, 1987 Inventor: Franco Ferrari. |