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发明名称
LIGHT ATTENUATOR FOR PHOTOSENSITIVE PRINTING
摘要
申请公布号
CA775885(A)
申请公布日期
1968.01.16
申请号
CAD775885
申请日期
申请人
SYLVANIA ELECTRIC PRODUCTS INC.
发明人
GLEN A. BURDICK;GEORGE R. KAUTZ
分类号
主分类号
代理机构
代理人
主权项
地址
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