Number | Name | Date | Kind |
---|---|---|---|
2483938 | Royston | Oct 1949 | |
4110854 | Sjolie | Sep 1978 | |
4196948 | Gavel et al. | Apr 1980 | |
4597117 | Sumner | Jul 1986 | |
4675929 | Santo | Jun 1987 | |
4750794 | Vegh | Jun 1988 | |
4788727 | Liu | Dec 1988 | |
4807315 | Wachenheim | Feb 1989 | |
4934765 | Slifer, Sr. et al. | Jun 1990 |
Number | Date | Country |
---|---|---|
218496 | Jul 1924 | GBX |
Entry |
---|
Waterbed Magazine, Jun. 1988, p. 34. |
REP Corporation Brochure, Jun. 1989. |