Number | Name | Date | Kind |
---|---|---|---|
3738169 | Courty | Jun 1973 | |
3901078 | McShane | Aug 1975 | |
4162630 | Johnson | Jul 1979 | |
4384491 | Brown et al. | May 1983 | |
4452090 | Kou et al. | Jun 1984 | |
4611496 | Komachi | Sep 1986 |
Entry |
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"Ultrasonic Measurements for Process Control", Theory, Techniques, Applications, Lynnworth, Academic Press, Inc. Harcourt Brace Jovanovich, Publishers, pp. 17 and 19. |