Automatic trip for two-way plow,申请号US19480044483-传众专利搜索

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发明名称	Automatic trip for two-way plow
摘要
申请公布号	US2656774(A)	申请公布日期	1953.10.27
申请号	US19480044483	申请日期	1948.08.16
申请人	ALICE MARIAN MELLEN	发明人	MELLEN WILLIAM FISK
分类号	A01B3/44	主分类号	A01B3/44
代理机构		代理人
主权项
地址

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