Number | Name | Date | Kind |
---|---|---|---|
2489860 | Carlin | Nov 1949 | |
3371233 | Cook | Feb 1968 | |
3638087 | Ratcliff | Jan 1972 | |
4319155 | Nakai et al. | Mar 1982 | |
4398925 | Trinh et al. | Aug 1983 | |
4455063 | Smith | Apr 1984 | |
4501151 | Christman | Feb 1985 | |
4544477 | Ratcliff | Nov 1985 | |
4559826 | Nelson | Dec 1985 | |
4736130 | Puskas | Apr 1988 | |
4864547 | Krsna | Sep 1989 |
Number | Date | Country |
---|---|---|
1572186 | Jul 1980 | GBX |
Entry |
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A Programable Pulse Generator for Piezoelectric Multielement Transducers, Certo et al., Ultrasonics, Jul. 1984 pp. 163-166. (copy in 310/317). |