Hoisting apparatus for power operated shovels,申请号US19310547661-传众专利搜索

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发明名称	Hoisting apparatus for power operated shovels
摘要
申请公布号	US1862862(A)	申请公布日期	1932.06.14
申请号	US19310547661	申请日期	1931.06.29
申请人	WILLIAM RUDDOCK	发明人	RUDDOCK WILLIAM
分类号	E02F3/30	主分类号	E02F3/30
代理机构		代理人
主权项
地址

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