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发明名称
SOUND PROOF HELMET
摘要
申请公布号
KR20010106841(A)
申请公布日期
2001.12.07
申请号
KR20000027820
申请日期
2000.05.23
申请人
CHO, CHUL HO
发明人
CHO, CHUL HO
分类号
A42B3/00;(IPC1-7):A42B3/00
主分类号
A42B3/00
代理机构
代理人
主权项
地址
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