Number | Date | Country | Kind |
---|---|---|---|
884967 | Oct 1988 | FIX |
Number | Name | Date | Kind |
---|---|---|---|
2239628 | Seki | Apr 1941 | |
3209579 | Roberts | Oct 1965 | |
3412935 | O'Keeffe | Nov 1968 | |
3618911 | Martin | Nov 1971 | |
3760773 | Christensen | Sep 1973 | |
3776023 | Budd et al. | Dec 1973 | |
3832882 | Schuen, Jr. | Sep 1974 | |
3856204 | Chand | Dec 1974 | |
4136550 | Pott | Jan 1979 | |
4139942 | Chand | Aug 1983 | |
4849174 | Brandt et al. | Jul 1989 |
Number | Date | Country |
---|---|---|
2247505 | May 1973 | DEX |
2645736 | Nov 1977 | DEX |
13146 | Jan 1986 | JPX |
256249 | Nov 1986 | JPX |
928291 | May 1982 | SUX |
1443484 | Jul 1976 | GBX |
Entry |
---|
Patent Abstracts of Japan; GRP P465; vol. 10, No. 160 ABS pub. date Jun. 7, 1986 (61-13146). |