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发明名称
PRINTING PLATES
摘要
申请公布号
CA815294(A)
申请公布日期
1969.06.17
申请号
CAD815294
申请日期
申请人
W.R. GRACE AND CO.
发明人
ROY W. PRINCE
分类号
主分类号
代理机构
代理人
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地址
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