The broken line showings of the rectangle on the front face, the rectangle in
The broken line showings of the rectangle on the front face, the rectangle in
| Number | Name | Date | Kind |
|---|---|---|---|
| D163700 | Klipsch | Jun 1951 | S |
| D276519 | Hobrough et al. | Nov 1984 | S |
| D280984 | Tricker | Oct 1985 | S |
| 4805730 | O'Neill et al. | Feb 1989 | A |
| D401583 | Shin et al. | Nov 1998 | S |
| D498745 | Sayler et al. | Nov 2004 | S |