Machine for cleaning and digging ditches,申请号US19270226097-传众专利搜索

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发明名称	Machine for cleaning and digging ditches
摘要
申请公布号	US1762441(A)	申请公布日期	1930.06.10
申请号	US19270226097	申请日期	1927.10.14
申请人	EMANUEL JOHNSON HJALMAR	发明人	JOHNSON HJALMAR EMANUEL
分类号	A01D34/86;E02F3/18;E02F3/20;E02F5/02;E02F5/08	主分类号	A01D34/86
代理机构		代理人
主权项
地址

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