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发明名称
PHOTO-CELL
摘要
申请公布号
CA333383(A)
申请公布日期
1933.06.20
申请号
CAD333383
申请日期
申请人
THE CANADIAN WESTINGHOUSE COMPANY
发明人
EARL D. WILSON
分类号
主分类号
代理机构
代理人
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