| 2100030 | Silencer | |||
| 2146183 | Muffler | |||
| 2229526 | Method of coating the interior of tanks with vitreous enamel | |||
| 2244393 | Muffler | |||
| 2259516 | Silencer construction | |||
| 2395005 | Muffler | |||
| 2825421 | Muffler | |||
| 2834427 | Muffler having a cover and a retaining strip therefor | |||
| 2922485 | Muffler | |||
| 2936846 | Ground exhaust noise suppressors | |||
| 3036655 | Muffler | |||
| 3082841 | Muffler | |||
| 3107748 | Ceramic coated muffler and method of making it |
| AU126776B |