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发明名称
Support and adjustment for speaking movie sound lens combination
摘要
申请公布号
US1929627(A)
申请公布日期
1933.10.10
申请号
US19300464725
申请日期
1930.06.30
申请人
INTERNATIONAL PROJECTOR CORPORATION
发明人
DINS AUGUSTO
分类号
G03B31/00
主分类号
G03B31/00
代理机构
代理人
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