Number | Date | Country | Kind |
---|---|---|---|
97-17845 | May 1997 | KPX |
Number | Name | Date | Kind |
---|---|---|---|
4009400 | Harris et al. | Feb 1977 | |
5278700 | Sutliff et al. | Jan 1994 | |
5510738 | Gorecki et al. | Apr 1996 | |
5872475 | Otaka | Feb 1999 |
Entry |
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Kim et al. , "Active RC . . . Controls", J. Korean Inst. Electron Engineering, Vo. 12, No. 6, Feb. 1976). |