Number | Name | Date | Kind |
---|---|---|---|
3005055 | Mattke | Oct 1961 | |
3383487 | Wiener | May 1968 | |
3676615 | Wiedmer | Jul 1972 | |
3676616 | Wiedmer | Jul 1972 | |
3742157 | Leposavic | Jun 1973 | |
3898421 | Suzumura | Aug 1975 | |
3996429 | Chu et al. | Dec 1976 | |
4029915 | Ojimu | Jun 1977 | |
4066851 | White et al. | Jan 1978 | |
4145584 | Otterlei | Mar 1979 |
Entry |
---|
IBM Tech. Disc. Bull., Lester et al., "Switch", vol. 11, No. 11, Apr. 1969, p. 1569. |