Number | Date | Country | Kind |
---|---|---|---|
8303319 | Sep 1983 | NLX |
Number | Name | Date | Kind |
---|---|---|---|
3667028 | Leufgen | May 1972 | |
3940681 | Ohsawa | Feb 1976 | |
3958170 | Hodgson | May 1976 | |
4307305 | Morris | Dec 1981 | |
4519024 | Federico et al. | May 1985 |
Entry |
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Electronic Design, vol. 31, No. 2, Jan. 20, 1983, WASECA. |