| 2052453 | Ventilator | |||
| 2120208 | Air conditioning machine | |||
| 2279271 | Window unit side wing construction | |||
| 2296635 | Ventilator | |||
| 2316704 | Air conditioner | |||
| 2433104 | Air-conditioning apparatus | |||
| 2448671 | Frame structure for ventilating fans | |||
| 2628052 | Supporting platform for window type room air conditioners | |||
| 2674430 | Support for air conditioning apparatus | |||
| 2691336 | Window ventilating device | |||
| 2761372 | Rotary key operated register |