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D340198 | Nakamoto et al. | Oct 1993 | |
4579663 | Poile et al. | Apr 1986 | |
4900446 | Anderson | Feb 1990 | |
4965049 | Lillig et al. | Oct 1990 | |
5055408 | Higo et al. | Oct 1991 | |
5228988 | Sanford et al. | Jul 1993 | |
5277871 | Fujii et al. | Jan 1994 |
Number | Date | Country |
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637124 | Aug 1984 | JPX |
735290 | Feb 1988 | JPX |
Entry |
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"Catalogue", Hitachi, Ltd., Jan. 1991. |
"Article of Magazine Introducing the Hewlett Packard's Product", Pittsburg Conference at Atlanta, Mar. 1991. |
"Catalogue", Shimadzu, Feb. 1991. |