SOUND ATTENUATING EARCUPS,申请号GB19690024705-传众专利搜索

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发明名称	SOUND ATTENUATING EARCUPS
摘要
申请公布号	GB1243728(A)	申请公布日期	1971.08.25
申请号	GB19690024705	申请日期	1969.05.14
申请人	GENTEX CORPORATION	发明人
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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