Number | Name | Date | Kind |
---|---|---|---|
4054890 | Shimomura | Oct 1977 | |
4441791 | Hornbeck | Apr 1984 | |
5051770 | Cornuejols | Sep 1991 | |
5418546 | Nakagakiuchi | May 1995 | |
5541705 | Kan et al. | Jul 1996 |
Entry |
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Popular Science Nov. 1994 cont. "The Big Picture" by Fleischmann. |