Number | Name | Date | Kind |
---|---|---|---|
1675960 | Schon et al. | Jul 1928 | |
2137738 | Faubion | Nov 1938 | |
2666174 | Pestarini | Jan 1954 | |
3321650 | Pedone, Jr. et al. | May 1967 | |
3445699 | Beaudry et al. | May 1969 | |
3958174 | Studtmann et al. | May 1976 | |
4035712 | Yarrow et al. | Jul 1977 | |
4041368 | Gritter | Aug 1977 | |
4056746 | Burtis | Nov 1977 | |
4246531 | Jordan | Jan 1981 | |
4330743 | Glennon | May 1982 | |
4554501 | Baker | Nov 1985 |
Entry |
---|
Standard Handbook for Electrical Engineers, 11th Edition, pp. 7-2, 7-24, 7-25 and 20-13. |