Excavating and scraping apparatus,申请号US19290367863-传众专利搜索

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发明名称	Excavating and scraping apparatus
摘要
申请公布号	US1811030(A)	申请公布日期	1931.06.23
申请号	US19290367863	申请日期	1929.06.03
申请人	WESLEY C. SHAW	发明人	SHAW ALLAN B.
分类号	E02F3/64	主分类号	E02F3/64
代理机构		代理人
主权项
地址

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