Number | Date | Country | Kind |
---|---|---|---|
61-25151 | Feb 1986 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4274706 | Tangonan | Jun 1981 | |
4482994 | Ishikawa | Nov 1984 | |
4701012 | Kaiser | Oct 1987 | |
4705349 | Reedy | Nov 1987 |
Number | Date | Country |
---|---|---|
0068198 | Jan 1983 | EPX |
0146957 | Dec 1984 | EPX |
56-85701 | Jul 1981 | JPX |
57-81227 | May 1982 | JPX |
58-149018 | Sep 1983 | JPX |
Entry |
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European Search Report, Jun. 1, 1987; The Hague by Examiner Pfahler, R. |
"Four-Channel Optical Branching Filter", Fujitsu Scientific and Technical Journal, vol. 21, No. 5, (Dec. 25, 1985), pp. 511-526. |