Attachement for sewer drains,申请号US19330700906-传众专利搜索

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发明名称	Attachement for sewer drains
摘要
申请公布号	US2008258(A)	申请公布日期	1935.07.16
申请号	US19330700906	申请日期	1933.12.04
申请人	OLSEN HAROLD A	发明人	OLSEN HAROLD A.
分类号	E03F5/042	主分类号	E03F5/042
代理机构		代理人
主权项
地址

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