Drain pipe for flushing attachments,申请号US19300429149-传众专利搜索

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发明名称	Drain pipe for flushing attachments
摘要
申请公布号	US1885977(A)	申请公布日期	1932.11.01
申请号	US19300429149	申请日期	1930.02.17
申请人	ALBERTA E. DENISON	发明人	DENISON LOUIS S.
分类号	E03C1/306	主分类号	E03C1/306
代理机构		代理人
主权项
地址

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