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发明名称
Continuous exposure-process-view process with light sealing means
摘要
申请公布号
US2862818(A)
申请公布日期
1958.12.02
申请号
US19550505825
申请日期
1955.05.03
申请人
KELVIN & HUGHES LIMITED
发明人
TYLER FRANK;WALKER CHRISTOPHER H. C.;TOWNLEY EUSTACE R.
分类号
G03B27/30
主分类号
G03B27/30
代理机构
代理人
主权项
地址
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