Number | Date | Country | Kind |
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7-035172 | Feb 1995 | JPX | |
7-165956 | Jun 1995 | JPX |
Number | Name | Date | Kind |
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3558920 | Giaever | Jan 1971 |
Entry |
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Danielson et al "Guided -Wave Reflectometry, With Micrometer Resolution" Applied Optics vol. 26 No. 14, 15 Jul. 1987, pp. 2836-2842 copy 356173.1. |