Constant velocity governor for hydraulic pipe line dredges,申请号US19610128069-传众专利搜索

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发明名称	Constant velocity governor for hydraulic pipe line dredges
摘要
申请公布号	US3180040(A)	申请公布日期	1965.04.27
申请号	US19610128069	申请日期	1961.07.31
申请人	BALLAM WALLACE C	发明人	BALLAM WALLACE C.
分类号	E02F3/90;E02F3/92	主分类号	E02F3/90
代理机构		代理人
主权项
地址

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