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经营范围
发明名称
A method of and an apparatus for producing shadings for cartographical purposes
摘要
申请公布号
GB1041582(A)
申请公布日期
1966.09.07
申请号
GB19620009246
申请日期
1962.03.09
申请人
THOMAS RAPPEL
发明人
分类号
G03F1/88
主分类号
G03F1/88
代理机构
代理人
主权项
地址
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