Number | Date | Country | Kind |
---|---|---|---|
9500155 | Jan 1995 | NL |
Number | Name | Date | Kind |
---|---|---|---|
3945870 | Johnsen | Mar 1976 | |
4533160 | Malone | Aug 1985 | |
4590109 | Holmberg | May 1986 | |
5328409 | Marquardt | Jul 1994 |
Number | Date | Country |
---|---|---|
2435049 | Feb 1975 | DE |
325057 | Jul 1989 | EP |
486127 | May 1992 | EP |
Entry |
---|
Drakes Office System Ltd. 1991 publicly used record book. |