COWLS FOR AIR VENT PIPES,申请号USD3509811-传众专利搜索

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发明名称	COWLS FOR AIR VENT PIPES
摘要
申请公布号	US3509811(A)	申请公布日期	1970.05.05
申请号	USD3509811	申请日期	1968.07.15
申请人	RUDI KAULFUSS;BERND KRETZSCHMER	发明人	WILHELM TOPP
分类号	F23L17/02;(IPC1-7):F23L17/02	主分类号	F23L17/02
代理机构		代理人
主权项
地址

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