Number | Name | Date | Kind |
---|---|---|---|
4178067 | Johnson et al. | Dec 1979 | |
4353620 | Schultz | Oct 1982 | |
4593971 | Clement et al. | Jun 1986 |
Number | Date | Country |
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0113562 | Oct 1978 | JPX |
Entry |
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Proceedings of the Optical Fiber Conference, Los Angeles, Sep. 1982, pp. 165-170. |