Number | Date | Country | Kind |
---|---|---|---|
4-278082 | Sep 1992 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4165168 | Baumann et al. | Aug 1979 | |
4387981 | Cormier | Jun 1983 |
Number | Date | Country |
---|---|---|
125075 | Jul 1983 | JPX |
Entry |
---|
Japanese Published Utility Model Application No. 31435/1977. |