Method for sealing apertures,申请号US19330704740-传众专利搜索

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发明名称	Method for sealing apertures
摘要
申请公布号	US1971649(A)	申请公布日期	1934.08.28
申请号	US19330704740	申请日期	1933.12.30
申请人	FURMAN EUGENE C;HEARD EDMUND F	发明人	FURMAN EUGENE C.;HEARD EDMUND F.
分类号	F16L55/175	主分类号	F16L55/175
代理机构		代理人
主权项
地址

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