Metal spool and the like,申请号US19280260642-传众专利搜索

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发明名称	Metal spool and the like
摘要
申请公布号	US1748859(A)	申请公布日期	1930.02.25
申请号	US19280260642	申请日期	1928.03.10
申请人	GEORGE BAXENDEN THOMAS;ROBERT COLLYEAR JOHN	发明人	BAXENDEN THOMAS GEORGE;COLLYEAR JOHN ROBERT
分类号	G03B17/30	主分类号	G03B17/30
代理机构		代理人
主权项
地址

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