Number | Date | Country | Kind |
---|---|---|---|
85 15880 | Oct 1985 | FRX |
Number | Name | Date | Kind |
---|---|---|---|
3617951 | Anderson | Nov 1971 | |
3662318 | Decuyper | May 1972 | |
3845413 | Chiron et al. | Oct 1974 | |
3886502 | Radding et al. | May 1975 |
Entry |
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Patents Abstracts of Japan, vol. 4, No. 145 (E-29) [627], 14 Oct. 1980; & JP-A-55 97 702 (Mitsubishi Denki K.K.) |