Number | Name | Date | Kind |
---|---|---|---|
3551920 | Greene | Jan 1971 | |
3691004 | Werner et al. | Sep 1972 | |
3709489 | Holleran et al. | Jan 1973 | |
3727888 | Nickolas | Apr 1973 | |
3844539 | Abbott | Oct 1974 | |
3883120 | Tippmann | May 1975 | |
3986342 | MacCracken | Oct 1976 | |
4078795 | Porter | Mar 1978 | |
4392647 | Golebieski | Jul 1983 | |
4497483 | Ahlgren | Feb 1985 | |
4883267 | Burley | Nov 1989 | |
4905970 | Holmsten et al. | Mar 1990 | |
5286320 | McGrath et al. | Feb 1994 | |
5700417 | Fernyhough et al. | Dec 1997 | |
5706625 | Vallance et al. | Jan 1998 | |
5709099 | Blades et al. | Jan 1998 | |
5863030 | Kotler et al. | Jan 1999 | |
5899171 | Abrahamson | May 1999 |
Number | Date | Country |
---|---|---|
2248786 | May 1975 | FRX |
2 669 834 | Jun 1992 | FRX |
645 275 | Sep 1984 | CHX |
Entry |
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Holmsten Ice Rinks, Inc., Holmsten Rinkmaster, "Dasher Board Systems Buyers Guide," 1990. |