Number | Date | Country | Kind |
---|---|---|---|
95202484 | Sep 1995 | EPX |
Number | Date | Country |
---|---|---|
126943 | Jul 1984 | JPX |
38463 | Feb 1992 | JPX |
197306 | Jul 1992 | JPX |
193203 | Jul 1992 | JPX |
336002 | Nov 1992 | JPX |
Entry |
---|
Oliver et al. "Electronic Measurements and Instrumentation", 1971, pp. 276-279. |