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5517232 | Heidemann et al. | May 1996 | A |
5654816 | Fishman | Aug 1997 | A |
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5898512 | Arai | Apr 1999 | A |
5905585 | Shirai | May 1999 | A |
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6285475 | Fee | Sep 2001 | B1 |
6356374 | Farhan | Mar 2002 | B1 |
6373611 | Farhan et al. | Apr 2002 | B1 |
Number | Date | Country |
---|---|---|
0 334 192 | Sep 1989 | EP |
334192 | Sep 1989 | EP |
63136736 | Jun 1988 | JP |
03153143 | Jul 1991 | JP |
09074403 | Mar 1997 | JP |
Entry |
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Bellcore, “Synchronous Optical Network (SONET) Transport Systems: Common Generic Criteria,” Technical Reference TR-NWT-000253, Issue 2, Dec. 1991. |