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发明名称
DARK ROOM ENCLOSURE
摘要
申请公布号
CA444803(A)
申请公布日期
1947.11.04
申请号
CAD444803
申请日期
申请人
CLIFFORD THOMAS OLDFIELD
发明人
CLIFFORD THOMAS OLDFIELD
分类号
主分类号
代理机构
代理人
主权项
地址
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