Rotary cleaning tool,申请号US19560559550-传众专利搜索

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发明名称	Rotary cleaning tool
摘要
申请公布号	US2843869(A)	申请公布日期	1958.07.22
申请号	US19560559550	申请日期	1956.01.17
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	HERMANCE HAROLD W.
分类号	A47L11/08;H01H1/60	主分类号	A47L11/08
代理机构		代理人
主权项
地址

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