Spring cultivator shank,申请号US19520310838-传众专利搜索

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发明名称	Spring cultivator shank
摘要
申请公布号	US2761267(A)	申请公布日期	1956.09.04
申请号	US19520310838	申请日期	1952.09.22
申请人	U. S. SPRING & BUMPER CO.	发明人	HILL ROY R.
分类号	A01B35/06	主分类号	A01B35/06
代理机构		代理人
主权项
地址

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