Number | Date | Country | Kind |
---|---|---|---|
60-155942 | Jul 1985 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4100973 | Freudenthal | Jul 1978 | |
4317331 | Aruga et al. | Mar 1982 | |
4464898 | Aoyagi et al. | Aug 1984 | |
4557109 | Nagahara et al. | Dec 1985 | |
4571941 | Aoyagi et al. | Feb 1986 |
Entry |
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European Search Report EP 86 10 9746 8/10/86. |