Surgical emergency signal,申请号US19390301253-传众专利搜索

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发明名称	Surgical emergency signal
摘要
申请公布号	US2258554(A)	申请公布日期	1941.10.07
申请号	US19390301253	申请日期	1939.10.25
申请人	HEYER FREDERICK W;PIATT FRED H	发明人	HEYER FREDERICK W.;PIATT FRED H.
分类号	A61F15/00	主分类号	A61F15/00
代理机构		代理人
主权项
地址

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