DEVICE FOR PROTECTING EARS FROM NOISE,申请号CAD624902-传众专利搜索

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发明名称	DEVICE FOR PROTECTING EARS FROM NOISE
摘要
申请公布号	CA624902(A)	申请公布日期	1961.08.01
申请号	CAD624902	申请日期
申请人	MINE SAFETY APPLIANCES COMPANY	发明人	ROBERT R. HORNICKEL;HERBERT R. BARNETT
分类号		主分类号
代理机构		代理人
主权项
地址

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