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发明名称
IMPROVED METHOD OF MODIFICATION OF THE COLOR OF GEMS
摘要
申请公布号
GB1279017(A)
申请公布日期
1972.06.21
申请号
GB19690027718
申请日期
1969.06.02
申请人
JOHN COURTNEY HAYNES
发明人
JOHN COURTNEY HAYNES
分类号
B01J19/08;G21H5/00
主分类号
B01J19/08
代理机构
代理人
主权项
地址
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