Structure for protecting metallic columnar elements,申请号US19540448317-传众专利搜索

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发明名称	Structure for protecting metallic columnar elements
摘要
申请公布号	US2928411(A)	申请公布日期	1960.03.15
申请号	US19540448317	申请日期	1954.08.06
申请人	JOHNSON WAYNE A	发明人	JOHNSON WAYNE A.
分类号	F16L58/00;F16L58/02	主分类号	F16L58/00
代理机构		代理人
主权项
地址

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