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发明名称
Improvements relating to the production of gelatine printing reliefs
摘要
申请公布号
GB512663(A)
申请公布日期
1939.09.22
申请号
GB19380004040
申请日期
1938.02.09
申请人
WILFRED WILLIAM GROVES
发明人
分类号
G03C5/315;G03C5/40
主分类号
G03C5/315
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