Invention Grant
US09380748B2 Vegetation protection system 有权
植被保护制度

Vegetation protection system
Abstract:
A protective system for vegetation has an underground housing from which a protective canopy can be deployed. The canopy unfurls as it is deployed and its position above ground can be adjusted after it is fully unfurled. After use, the canopy can be furled and lowered back into the housing. A liquid delivery system allows use of anti-freeze or fertilizer to be delivered via the system. Deployment of the system can be done manually or automatically in response to a selected signal.
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