Leakproofing packed joint in gas distribution systems,申请号US19370128555-传众专利搜索

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发明名称	Leakproofing packed joint in gas distribution systems
摘要
申请公布号	US2141959(A)	申请公布日期	1938.12.27
申请号	US19370128555	申请日期	1937.03.01
申请人	THE UNITED GAS IMPROVEMENT COMPANY	发明人	SKEEN JOHN R.
分类号	F16L55/164	主分类号	F16L55/164
代理机构		代理人
主权项
地址

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