Improvements in or relating to recessed ploughs for two-layer ploughing,申请号GB19360030951-传众专利搜索

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发明名称	Improvements in or relating to recessed ploughs for two-layer ploughing
摘要
申请公布号	GB472207(A)	申请公布日期	1937.09.20
申请号	GB19360030951	申请日期	1936.11.12
申请人	OTTO SACK;HANS SACK	发明人
分类号	A01B13/14	主分类号	A01B13/14
代理机构		代理人
主权项
地址

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