发明授权
US4557311A Protective covering 失效
防护罩

Protective covering
摘要:
A shade serving to shelter from light, wind, and vision is useful especially at balconies of buildings. The shade comprises a web made of foldable, weatherproof material and adapted to be stretched over an opening to be shielded in a wall or between walls of the building. The upper part of the shade is guided by means of sliding hooks or rollers provided with hooks along a drapery rod fixed to the wall, while the lower part of the shade is adapted to be secured by push button fasteners to a lower wall member, either in fully or partly stretched condition. When not in use, the shade may be wrapped in a cover which fastened in an area of the wall adjacent the opening.
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