Patent Grant
D340765
| Number | Name | Date | Kind |
|---|---|---|---|
| D144637 | Smith | May 1946 | |
| D149266 | Gustafson | Apr 1948 | |
| D157834 | Bourner | Mar 1950 | |
| D161145 | Wilson | Dec 1950 | |
| D161146 | Wilson | Dec 1950 | |
| D161147 | Wilson | Dec 1950 | |
| D265122 | Townsend et al. | Jun 1982 | |
| D286428 | Liu | Oct 1986 | |
| D301277 | Fu | May 1989 | |
| D306342 | Lane | Feb 1990 | |
| D306757 | Lane | Mar 1990 | |
| D311951 | Dubin | Nov 1990 | |
| D314613 | De'Longhi | Feb 1991 | |
| D320648 | Velazquez | Oct 1991 | |
| D325628 | Cho | Apr 1992 | |
| 2443983 | Gustafson et al. | Jun 1948 | |
| 2450921 | Smith | Oct 1948 | |
| 2813673 | Smith | Nov 1957 | |
| 3059090 | Waters | Oct 1962 | |
| 4384189 | Dahan | May 1983 | |
| 4703152 | Shih-Chin | Oct 1987 | |
| 4760243 | Tedioli | Jul 1988 | |
| 4850804 | Huang | Jul 1989 | |
| 4870253 | De'Longhi | Sep 1989 |
| Number | Date | Country |
|---|---|---|
| 935667 | Jun 1948 | FRX |
| Entry |
|---|
| House & Garden, Nov. 1947, p. 220, Wittie Oscillating Heater Fan. |
| Brochure for a De'Longhi Turbo Tech Heat Accelerator (date unknown), published prior to May 26, 1992. |
