Number | Name | Date | Kind |
---|---|---|---|
2638567 | Cronin | May 1953 | |
2831132 | Jackson | Apr 1958 | |
3556079 | Omizo | Jan 1971 | |
3663842 | Miller | May 1972 | |
3721227 | Larson et al. | Mar 1973 | |
3890423 | Zacharias, Jr. | Jun 1975 | |
4029084 | Soldner | Jun 1977 | |
4058114 | Soldner | Nov 1977 | |
4108165 | Kopp et al. | Aug 1978 | |
4130018 | Adams et al. | Dec 1978 | |
4184094 | Kopel | Jan 1980 | |
4249539 | Vilkomerson et al. | Feb 1981 |
Number | Date | Country |
---|---|---|
39045 | Nov 1981 | EPX |
2455401 | Nov 1974 | DEX |
Entry |
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Sommer et al.; "A Phantom for Imaging Biological Fluids by Ultrasound and CT Scanning"; Ultrasound in Med. and Biol.; vol. 6, No. 2, 1980, pp. 135-140. |
Time, Oct. 2, 1964, p. 96, "Surgery, Into the Eye with Ultrasound". |