Number | Date | Country | Kind |
---|---|---|---|
9020771 | Sep 1990 | GBX | |
9104539 | Mar 1991 | GBX |
Filing Document | Filing Date | Country | Kind | 102e Date | 371c Date |
---|---|---|---|---|---|
PCT/GB91/01623 | 9/20/1991 | 4/14/1993 | 4/14/1993 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO92/05421 | 4/2/1992 |
Number | Name | Date | Kind |
---|---|---|---|
3665752 | Piper | May 1972 | |
3878710 | Miller | Apr 1975 | |
3926035 | Schlatter | Dec 1975 | |
4114423 | Wenger | Sep 1978 | |
4297872 | Ikeda et al. | Nov 1981 | |
4409840 | Roberts | Oct 1983 | |
4420983 | Langdon | Dec 1983 |
Number | Date | Country |
---|---|---|
331538 | Jan 1989 | EPX |
2027539 | Feb 1980 | GBX |
WO9002933 | Mar 1990 | WOX |
Entry |
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Control and Instrumentation, vol. 7, No. 22, Feb. 1975, D. Green, "resonance frequency: measurement top of the seventies", pp. 40-43. |