Spreading apparatus for dry powdered material,申请号US19660597683-传众专利搜索

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发明名称	Spreading apparatus for dry powdered material
摘要
申请公布号	US3378174(A)	申请公布日期	1968.04.16
申请号	US19660597683	申请日期	1966.11.29
申请人	WINFRED L. TUNNELL	发明人	TUNNELL WINFRED L.
分类号	E01C19/20	主分类号	E01C19/20
代理机构		代理人
主权项
地址

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