Shale planer,申请号US19280323337-传众专利搜索

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发明名称	Shale planer
摘要
申请公布号	US1753804(A)	申请公布日期	1930.04.08
申请号	US19280323337	申请日期	1928.12.03
申请人	POWELL JOSEPH M	发明人	POWELL JOSEPH M.
分类号	E21C47/10	主分类号	E21C47/10
代理机构		代理人
主权项
地址

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