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2-51500 | Mar 1990 | JPX |
Number | Name | Date | Kind |
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3967276 | Goubau | Jun 1976 | |
4201989 | Czerwinski | May 1980 | |
4835541 | Johnson et al. | May 1989 | |
4887090 | Shibano et al. | Dec 1989 | |
4907006 | Nishikawa et al. | Mar 1990 |
Number | Date | Country |
---|---|---|
0332139 | Sep 1989 | EPX |
879850 | Jun 1953 | DEX |
926173 | May 1963 | GBX |
Entry |
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Review of the Electrical Communication Laboratories, vol. 30, No. 2, Mar. 1982, pp. 359-370, Tokyo, JP; H. Mishima et al, "Antenna and Duplexer for new Mobile Radio Unit". |
Patent Abstracts of Japan, vol. 1, No. 162 (E-077), Dec. 21, 1977 & JP-A-52 108 755 (Matsushita Denki Sangyo K.K.), Sep. 12, 1977. |