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发明名称
PROJECTOR
摘要
申请公布号
US3511563(A)
申请公布日期
1970.05.12
申请号
USD3511563
申请日期
1967.11.14
申请人
MINNESOTA MINING & MFG. CO.
发明人
JAMES V. ERWIN
分类号
G03B21/132;(IPC1-7):G03B21/14
主分类号
G03B21/132
代理机构
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