Number | Name | Date | Kind |
---|---|---|---|
3729786 | Walding | May 1973 | |
4253206 | Cherry | Mar 1981 | |
4305186 | Cherry | Dec 1981 | |
4730370 | Elder | Mar 1988 | |
4800631 | Pellmann | Jan 1989 | |
5035032 | Nutting | Jul 1991 |
Entry |
---|
Statutory Invention Registration No. 1348--Sep. 6, 1994--Linville et al. |