Patent Grant
D331270
| Number | Name | Date | Kind |
|---|---|---|---|
| D152394 | Ceverha | Jan 1949 | |
| D155924 | Ray | Nov 1949 | |
| D187638 | Kelley | Apr 1960 | |
| D204444 | Emery | Apr 1966 | |
| D216525 | Meinwieser | Feb 1970 | |
| D300694 | Krok | Apr 1989 | |
| D321386 | Reichman | Nov 1991 | |
| 1904039 | Bruder | Apr 1933 | |
| 2623574 | Damsch | Dec 1952 | |
| 3089153 | Bosc | May 1963 | |
| 3112956 | Schick et al. | Dec 1963 | |
| 4109960 | Stinchfield | Aug 1978 | |
| 4132228 | Green | Jan 1979 | |
| 4210322 | Pritchard | Jul 1980 | |
| 4230099 | Richardson | Oct 1980 | |
| 4258952 | Dutra | Mar 1981 | |
| 4367870 | Birch | Jan 1983 | |
| 4688283 | Jacobson et al. | Aug 1987 | |
| 4723329 | Vaccaro | Feb 1988 | |
| 4752067 | Colonello | Jun 1988 | |
| 4902003 | Buoni | Feb 1990 |
