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发明名称
Exposure apparatus for contact printing
摘要
申请公布号
US2572930(A)
申请公布日期
1951.10.30
申请号
US19480065638
申请日期
1948.12.16
申请人
CHEMISCHE FABRIEK L. VAN DER GRINTEN
发明人
HELDENS PETER HENRIKUS
分类号
G03B27/22
主分类号
G03B27/22
代理机构
代理人
主权项
地址
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