Number | Date | Country | Kind |
---|---|---|---|
3402225 | Jan 1984 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
1485409 | Miller | Mar 1924 | |
2385454 | Lehde | Sep 1945 | |
2407555 | Kettering | Sep 1946 | |
2963590 | Schultz et al. | Dec 1960 | |
3122689 | Atkinson | Feb 1964 | |
3184662 | Wallace | May 1965 | |
3191284 | Eurey | Jun 1965 | |
3405340 | Ankenman et al. | Oct 1968 | |
3418547 | Dudler | Dec 1968 | |
3465223 | Mears | Sep 1969 | |
3559017 | Dinger | Jan 1971 | |
3678351 | Shemanske | Jul 1972 | |
3697849 | Uchida | Oct 1972 | |
3757179 | Pedersen | Sep 1973 | |
4078198 | Murakosi et al. | Mar 1978 | |
4211967 | Akiyama et al. | Jul 1980 | |
4491905 | Arakawa | Jan 1985 | |
4518899 | Wolf | May 1985 |
Number | Date | Country |
---|---|---|
49206 | Jul 1966 | DEX |
2051754 | Apr 1972 | DEX |
Entry |
---|
EDN, Aug. 5, 1977, vol. 22, No. 14. |