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经营范围
发明名称
PROJECTOR FOCUSING MECHANISM
摘要
申请公布号
GB1527923(A)
申请公布日期
1978.10.11
申请号
GB19760003431
申请日期
1976.01.28
申请人
GAF CORP
发明人
分类号
G03B21/53;(IPC1-7):G03B21/00
主分类号
G03B21/53
代理机构
代理人
主权项
地址
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