Referenced by|
| US4120347 | 4 Oct 1976 | 17 Oct 1978 | | Two-passage pipe, especially for air conditioning installations | | US4854376 | 20 Jul 1987 | 8 Aug 1989 | Sanyo Electric Co., Ltd. | Wall mounted air conditioner with dischargers in separate rooms | | US5617729 | 30 Apr 1996 | 8 Apr 1997 | | Central air condition utility system and method of operation thereof |
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