Pipe sealing and centering apparatus,申请号US19330677536-传众专利搜索

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发明名称	Pipe sealing and centering apparatus
摘要
申请公布号	US1974878(A)	申请公布日期	1934.09.25
申请号	US19330677536	申请日期	1933.06.26
申请人	WALTER SCRIBNER	发明人	SCRIBNER WALTER
分类号	F16L13/12	主分类号	F16L13/12
代理机构		代理人
主权项
地址

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