Patent Grant
D420966
| Number | Name | Date | Kind |
|---|---|---|---|
| D174796 | Caldwell | May 1955 | |
| D178726 | Friedman | Sep 1956 | |
| D183475 | Bachtel | Sep 1958 | |
| D213043 | Crepeau | Dec 1968 | |
| D232824 | Gerber | Sep 1974 | |
| D247893 | Okland | May 1978 | |
| D276716 | Dignan | Dec 1984 | |
| D288799 | Peress | Mar 1987 | |
| D290833 | Walters | Jul 1987 | |
| D292388 | Weiler | Oct 1987 | |
| D293667 | Weiler | Jan 1988 | |
| D308507 | Charet et al. | Jun 1990 | |
| D313789 | Thundercloud | Jan 1991 | |
| D325555 | Primeau | Apr 1992 | |
| D342932 | Primeau | Jan 1994 | |
| D358571 | Thundercloud | May 1995 | |
| D372011 | Tyler | Jul 1996 | |
| D393238 | Kraines | Apr 1998 | |
| D394037 | Mauffette | May 1998 | |
| D394835 | Crute-Williams et al. | Jun 1998 | |
| D408342 | Yang | Apr 1999 | |
| 1464970 | Brown | Aug 1923 | |
| 3526016 | Stata | Sep 1970 | |
| 4420180 | Dupont et al. | Dec 1983 |
