Novel holding umbrella is used to open air
The utility model relates to a life field, more specifically the novel holding umbrella is used to open air that says so, include umbrella face, bracing piece, fastening bolt, fixed column, fixed head, transparent chamber layer, paste layer, arc fixed bed, its characterized in that: the umbrella fac...
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Format: | Patent |
Sprache: | chi ; eng |
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Online-Zugang: | Volltext bestellen |
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