Number | Name | Date | Kind |
---|---|---|---|
1854354 | Wallerstein | Apr 1932 | |
2014342 | Gutekunst | Sep 1935 | |
2965490 | Rusoff | Dec 1960 | |
3397061 | Katz | Aug 1968 | |
3821420 | Arden | Jun 1974 | |
3982042 | Arden | Sep 1976 | |
4343818 | Eggen | Aug 1982 | |
4948600 | Zumbe et al. | Aug 1990 |
Number | Date | Country |
---|---|---|
622 028 | Mar 1981 | DEX |
50-33137 | Oct 1975 | JPX |
61-219339 | Sep 1986 | SEX |
Entry |
---|
Shimazaki et al. Patent Abstracts of Japan, Abstracting 07-79749, Mar. 1995. |