| 摘要 |
An insulated window covering for mounting over the external surface of a window frame in a building having a flat planar sheet of material designed to substantially cover the external surface of the window, and having a flat planar sheet of insulation secured to one surface of the sheet of material adjacent to the window surface to form an insulated panel. Fasteners secure the insulated panel to the building and consist of L-brackets. The insulated panels are easily attachable and detachable to the window openings of the building and are used to insulate the building in summer and winter to provide savings in energy costs.
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