Process of making well strainers,申请号US19280264221-传众专利搜索

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发明名称	Process of making well strainers
摘要
申请公布号	US1763996(A)	申请公布日期	1930.06.17
申请号	US19280264221	申请日期	1928.03.23
申请人	A. D. COOK, INC.	发明人	WILLERS GEORGE E.
分类号	B21F27/12	主分类号	B21F27/12
代理机构		代理人
主权项
地址

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