Number | Date | Country | Kind |
---|---|---|---|
3807402 | Mar 1988 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3404198 | Guyer | Oct 1968 | |
3547868 | Schwartzenburg, Jr. et al. | Dec 1970 | |
3734918 | Mayer et al. | May 1973 | |
4264760 | Meyer | Apr 1981 | |
4285848 | Hickson | Aug 1981 | |
4458049 | Diem et al. | Jul 1984 | |
4831089 | Flodman et al. | May 1989 | |
4857609 | Flodman et al. | Aug 1989 |
Number | Date | Country |
---|---|---|
0052212 | May 1979 | EPX |
69267 | Jun 1982 | EPX |
0031533 | Jul 1982 | EPX |
2020481 | Jun 1979 | DEX |
Entry |
---|
Japanese Patent Abstract 60-40178, v. 9, No. 166 (C-290), 1985. |