Combined power operated dipper trip and tag line,申请号US19280247948-传众专利搜索

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发明名称	Combined power operated dipper trip and tag line
摘要
申请公布号	US1850167(A)	申请公布日期	1932.03.22
申请号	US19280247948	申请日期	1928.01.19
申请人	KOEHRING COMPANY	发明人	BREY HAROLD E.
分类号	E02F3/96	主分类号	E02F3/96
代理机构		代理人
主权项
地址

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