INSTALLATION FOR CLOSING THE END OF A GAS CONDUIT OPENING INTO A CHIMNEY,申请号USD3520291-传众专利搜索

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发明名称	INSTALLATION FOR CLOSING THE END OF A GAS CONDUIT OPENING INTO A CHIMNEY
摘要
申请公布号	US3520291(A)	申请公布日期	1970.07.14
申请号	USD3520291	申请日期	1968.09.16
申请人	GERARD DEYNAT	发明人	GERARD DEYNAT
分类号	F23J11/00;(IPC1-7):F23L13/06	主分类号	F23J11/00
代理机构		代理人
主权项
地址

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