Laermschutzvorrichtung nach Art von Ohrenschuetzern,申请号DE19551267787-传众专利搜索

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发明名称	Laermschutzvorrichtung nach Art von Ohrenschuetzern
摘要
申请公布号	DE1267787(B)	申请公布日期	1968.05.09
申请号	DE19551267787	申请日期	1955.05.20
申请人	NATIONAL RESEARCH COUNCIL	发明人	SHAW EDGAR ALBERT GEORGE;THIESSEN GEORGE JACOB
分类号	A61F11/14	主分类号	A61F11/14
代理机构		代理人
主权项
地址

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