发明名称 |
STRUTTURA E METODO PER FAVORIRE LA CRESCITA DI PIANTE |
摘要 |
A greenhouse cloche etc comprising an outer light transmitting wall relatively impermeable to carbon dioxide and an inner light transmitting wall relatively permeable to carbon dioxide and gas admitting means for introducing carbon dioxide gas into the space between the inner and outer walls. |
申请公布号 |
IT1059052(B) |
申请公布日期 |
1982.05.31 |
申请号 |
IT19760022102 |
申请日期 |
1976.04.08 |
申请人 |
THE BRITISH PETROLEUM CO LTD |
发明人 |
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分类号 |
A01G9/14;A01G9/18;(IPC1-7):01G/ |
主分类号 |
A01G9/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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