| 摘要 |
The Para-Window is a device that enables a person to view the outside while being below grade. This is accomplished through the use of carefully located mirrors, essentially creating a large fixed periscope. Not only is the outside world seen straigh t ahead but also in the right and left direction for a complete scene. The addition of a Para- Window will turn anyone's basement into habitable living space. The unit is also a home security device.
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