Number | Name | Date | Kind |
---|---|---|---|
2558846 | Guild et al. | Jul 1951 | A |
2712755 | Meytre | Jul 1955 | A |
2794340 | Cobert | Jun 1957 | A |
3639987 | Page | Feb 1972 | A |
3639988 | Impastato | Feb 1972 | A |
3730405 | Ezell et al. | May 1973 | A |
3750291 | Foreman | Aug 1973 | A |
3879990 | Joy | Apr 1975 | A |
4136557 | Bell et al. | Jan 1979 | A |
5094110 | Porter et al. | Mar 1992 | A |
Number | Date | Country |
---|---|---|
0538588 | Apr 1993 | EP |
2104564 | Mar 1983 | GB |
2179741 | Mar 1987 | GB |
Entry |
---|
UK Patent Application, GB 2 081 321, Ambrogini et al., Jul. 11, 1980. |