FIRE DOOR DROPOUT,申请号USD3613765-传众专利搜索

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发明名称	FIRE DOOR DROPOUT
摘要
申请公布号	US3613765(A)	申请公布日期	1971.10.19
申请号	USD3613765	申请日期	1970.09.14
申请人	BERNARD J. SIVIN	发明人	BERNARD J. SIVIN
分类号	E05F1/02;E05F15/20;(IPC1-7):E05F15/20	主分类号	E05F1/02
代理机构		代理人
主权项
地址

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