Number | Date | Country | Kind |
---|---|---|---|
MI91 U 01107 | Dec 1991 | ITX |
Number | Name | Date | Kind |
---|---|---|---|
3727333 | Ward et al. | Apr 1973 | |
4270287 | Gimbel | Jun 1981 | |
4884353 | Taylor | Dec 1989 |
Number | Date | Country |
---|---|---|
8804230 | Jun 1988 | DEX |
2561118 | Sep 1985 | FRX |
860032 | Feb 1961 | GBX |
Entry |
---|
General Electric Catalogue, "Control and Signalling Limits", p. 7, Apr. 1987. |