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声控延时开关
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申请公布号
CN3023006D
申请公布日期
1994.01.19
申请号
CN93302224.7
申请日期
1993.04.06
申请人
项青松
发明人
项青松
分类号
13-03
主分类号
13-03
代理机构
代理人
主权项
地址
324400浙江省龙游县衢龙路110号
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