Method of making guard rings for gas cylinders,申请号US19570665761-传众专利搜索

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发明名称	Method of making guard rings for gas cylinders
摘要
申请公布号	US2945294(A)	申请公布日期	1960.07.19
申请号	US19570665761	申请日期	1957.06.14
申请人	THE WEATHERHEAD COMPANY	发明人	COURTOT LOUIS B.;TANKER GEORGE E.
分类号	F17C13/08	主分类号	F17C13/08
代理机构		代理人
主权项
地址

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