Number | Date | Country | Kind |
---|---|---|---|
54-124935 | Sep 1979 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4242443 | Luhrig et al. | Dec 1980 |
Number | Date | Country |
---|---|---|
29-124934 | Sep 1954 | JPX |
48-33697 | Oct 1973 | JPX |
50-153628 | May 1975 | JPX |
1330524 | Oct 1970 | GBX |
Entry |
---|
Research Disclosure, 78 RD#17321, Sylvester et al. |