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发明名称
Compound optical system for motion picture projection machines
摘要
申请公布号
US1932204(A)
申请公布日期
1933.10.24
申请号
US19280325565
申请日期
1928.12.12
申请人
INTERNATIONAL PROJECTOR CORPORATION
发明人
DINA AUGUSTO
分类号
G03B21/20
主分类号
G03B21/20
代理机构
代理人
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