Device for partially obstructing pipes,申请号US19410411164-传众专利搜索

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发明名称	Device for partially obstructing pipes
摘要
申请公布号	US2281448(A)	申请公布日期	1942.04.28
申请号	US19410411164	申请日期	1941.09.17
申请人	SCULLY SIGNAL CO.	发明人	MATHEY ALCIDE E.
分类号	B60K15/04	主分类号	B60K15/04
代理机构		代理人
主权项
地址

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