Number | Date | Country | Kind |
---|---|---|---|
3-260266 | Oct 1991 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2434271 | Howatt | Jan 1948 | |
4873064 | Kato | Oct 1989 | |
5009587 | Corvaglia et al. | Apr 1991 |
Number | Date | Country |
---|---|---|
0315586 | Oct 1988 | EPX |
0420284 | Sep 1990 | EPX |
0444475 | Feb 1991 | EPX |
60-30143 | Feb 1985 | JPX |
60-206613 | Oct 1985 | JPX |
61-97134 | May 1986 | JPX |
61-43286 | Sep 1986 | JPX |
63-185821 | Aug 1988 | JPX |
3-174356 | Jul 1991 | JPX |
3199003 | Aug 1991 | JPX |
Entry |
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Patent Abstract of Japan, vol. 13, No. 63 Feb. 13, 1989 (Kishimoto Sangyo KK) Database WPIL, Week 8914, Derwent Pub. Ltd., London, GB; JP-A-1 051 921 (Polyplastics KK) 28. |