SCRAPER AND PLOUGH ARRANGEMENT,申请号SU19772545817-传众专利搜索

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发明名称	SCRAPER AND PLOUGH ARRANGEMENT
摘要
申请公布号	SU653392(A1)	申请公布日期	1979.03.25
申请号	SU19772545817	申请日期	1977.11.21
申请人	BROJTMAN YURIJ P,SU	发明人	BROJTMAN YURIJ P,SU
分类号	E21C27/42;(IPC1-7):E21C27/42	主分类号	E21C27/42
代理机构		代理人
主权项
地址

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