Self-closing drum filling valve,申请号US19300460141-传众专利搜索

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发明名称	Self-closing drum filling valve
摘要
申请公布号	US1810366(A)	申请公布日期	1931.06.16
申请号	US19300460141	申请日期	1930.06.10
申请人	FELIPE MARTIN	发明人	MARTIN FELIPE
分类号	B67D7/42	主分类号	B67D7/42
代理机构		代理人
主权项
地址

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