Number | Date | Country | Kind |
---|---|---|---|
1381/89 | Apr 1989 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
3697761 | Kamachi | Oct 1972 | |
3957378 | Zipin | May 1976 | |
4587414 | Bohlander | May 1986 | |
4682038 | Focke | Jul 1987 | |
4695720 | Rieder et al. | Sep 1987 | |
4731542 | Doggett | Mar 1988 |
Number | Date | Country |
---|---|---|
1207640 | Dec 1965 | DEX |
2106642 | Apr 1983 | GBX |
2186362 | Aug 1987 | GBX |
Entry |
---|
Patent Abstract of Japan, vol. 9, No. 300 (M-433) [2032] Nov. 27, 1985 including No. 60,137,752. |