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发明名称
自动回卷式免提耳筒
摘要
申请公布号
CN3162542D
申请公布日期
2000.10.04
申请号
CN99313257.X
申请日期
1999.09.02
申请人
精良塑料厂有限公司
发明人
顾祥德
分类号
14-01-H0123
主分类号
14-01-H0123
代理机构
中国专利代理(香港)有限公司
代理人
杨松龄
主权项
地址
香港九龙官塘
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