Improvements in or relating to coverings for growing crops,申请号GB19520005149-传众专利搜索

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发明名称	Improvements in or relating to coverings for growing crops
摘要
申请公布号	GB714527(A)	申请公布日期	1954.09.01
申请号	GB19520005149	申请日期	1952.02.27
申请人	OWEN HENRY BELL	发明人
分类号	A01G9/20	主分类号	A01G9/20
代理机构		代理人
主权项
地址

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