Improvements in or relating to seed planting implements,申请号GB19480030449-传众专利搜索

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发明名称	Improvements in or relating to seed planting implements
摘要
申请公布号	GB649436(A)	申请公布日期	1951.01.24
申请号	GB19480030449	申请日期	1948.11.23
申请人	JOHANNES JACOBUS DE VILLIERS STEYN	发明人
分类号	A01C7/16	主分类号	A01C7/16
代理机构		代理人
主权项
地址

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