Number | Name | Date | Kind |
---|---|---|---|
RE27456 | Davis et al. | Aug 1972 | |
3633339 | Wiewiorski et al. | Jan 1972 | |
3764569 | Li et al. | Oct 1973 | |
4056462 | Li et al. | Nov 1977 | |
4261707 | Bradshaw et al. | Apr 1981 | |
4265642 | Mir et al. | May 1981 | |
4265944 | Garner | May 1981 | |
4339248 | Garner | Jul 1982 | |
4378235 | Cosper et al. | Mar 1983 |
Entry |
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International Publication No. WO82/01324, dtd. 4/29/82, pp. 1-5, spec. 1 sheet dwg. |