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发明名称
WORKING GEMSTONES
摘要
申请公布号
GB2074480(B)
申请公布日期
1983.04.07
申请号
GB19800013407
申请日期
1980.04.23
申请人
GERSAN ETABLISHMENT
发明人
分类号
B28D5/00;G01B11/02;(IPC1-7):B28D5/00
主分类号
B28D5/00
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