Number | Date | Country | Kind |
---|---|---|---|
3624858 | Jul 1986 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4412059 | Krigbaum et al. | Oct 1983 | |
4536450 | Garito | Aug 1985 |
Number | Date | Country |
---|---|---|
0021695 | Jan 1981 | EPX |
Entry |
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McGraw-Hill Concise Encyclopedia of Science & Technology, pp. 1161-1162. |
Dictionary of Scientific and Technical Terms, McGraw-Hill Book Co., 1976, p. 1011. |