Patent Grant
D381747
| Number | Name | Date | Kind |
|---|---|---|---|
| D240278 | Staub et al. | Jun 1976 | |
| D248967 | Shea et al. | Aug 1978 | |
| 4676243 | Clayman | Jun 1987 | |
| 4844064 | Thimsen et al. | Jul 1989 | |
| 4986827 | Akkas et al. | Jan 1991 | |
| 5176628 | Charles et al. | Jan 1993 | |
| 5320635 | Smith | Jun 1994 | |
| 5364395 | West, Jr. | Nov 1994 | |
| 5496314 | Eggers | Mar 1996 |
