Number | Date | Country | Kind |
---|---|---|---|
3241016 | Nov 1982 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3601661 | Kleinhample, Jr. | Aug 1971 | |
3711814 | Pamella et al. | Jan 1973 | |
3798507 | Damon et al. | Mar 1974 | |
3939382 | Lacan et al. | Feb 1976 | |
4201303 | Smith | May 1980 |
Entry |
---|
Deutsche Industrie Norm 41 617, Feb. 1983; 41 612, Jul. 1981. |