Patent Grant
D338613
| Number | Name | Date | Kind |
|---|---|---|---|
| D56197 | Schultz | Aug 1920 | |
| D221279 | Erickson | Jul 1971 | |
| D250631 | Stephenson | Dec 1978 | |
| D281576 | Akers | Dec 1985 | |
| D283909 | Hoover | May 1986 | |
| D291650 | Monzen | Sep 1987 | |
| D298915 | Rowley et al. | Dec 1988 | |
| D312771 | Pelletier | Dec 1990 | |
| D317860 | Gary | Jul 1991 | |
| 2693332 | Albert | Nov 1954 | |
| 3139252 | Mann | Jun 1964 | |
| 3154274 | Hillcourt | Oct 1964 | |
| 4124190 | Wheeler | Nov 1978 |
| Number | Date | Country |
|---|---|---|
| 520986 | Jan 1956 | CAX |
| 522496 | Mar 1956 | CAX |
| 1494198 | Jul 1967 | FRX |
