Patent Grant
D308187
| Number | Name | Date | Kind |
|---|---|---|---|
| D251289 | Larson | Mar 1979 | |
| D267001 | LeBlanc | Nov 1982 | |
| D269418 | Appelblatt et al. | Jun 1983 | |
| D289389 | Picard | Apr 1987 | |
| 4492282 | Appelblatt et al. | Jan 1985 | |
| 4601230 | LeBlanc | Jul 1986 | |
| 4607562 | LeBlanc | Aug 1986 |
| Number | Date | Country |
|---|---|---|
| 1012221 | Jul 1957 | DDX |
