Number | Date | Country | Kind |
---|---|---|---|
3616498 | May 1986 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3859622 | Hutchison et al. | Jan 1975 | |
4060792 | van Heyningen | Nov 1977 | |
4070642 | Iinuma et al. | Jan 1978 | |
4080838 | Kurda et al. | Mar 1978 | |
4099419 | Kuroda et al. | Jul 1978 | |
4127034 | Lederman et al. | Nov 1978 | |
4285011 | Sato | Aug 1981 | |
4561308 | Bele et al. | Dec 1985 | |
4628738 | Burckhardt et al. | Dec 1986 | |
4700573 | Savard | Oct 1987 |
Number | Date | Country |
---|---|---|
0091375 | Oct 1983 | EPX |
2158329 | Nov 1985 | GBX |
Entry |
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"Donar: A Computer Processing System to Extend Ultrasonic Pulse-Echo T-Sting", Lees et al., Ultrasonics, Jul. 1973, vol. 11, No. 4, pp. 165-173. |