Number | Date | Country | Kind |
---|---|---|---|
57-2995 | Jan 1982 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3796495 | Laub | Mar 1974 | |
3854325 | Coate | Dec 1974 | |
4046477 | Kaule | Sep 1977 | |
4147435 | Habegger | Apr 1979 | |
4172382 | Murphy et al. | Oct 1979 |
Number | Date | Country |
---|---|---|
2709725 | Sep 1978 | DEX |
Entry |
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Palmer, "Ultrasonic Surface Wave Detection by Optical Interferometry", J. Acoustical Soc. Amer., vol. 53, No. 3, pp. 948-949, 3/73. |