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发明名称
Adjustable mortar board
摘要
申请公布号
GB0402308(D0)
申请公布日期
2004.03.10
申请号
GB20040002308
申请日期
2004.02.03
申请人
PRENTICE, KENNETH W
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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