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发明名称
Pad roller mounting for motion picture projection machines
摘要
申请公布号
US1857116(A)
申请公布日期
1932.05.03
申请号
US19290417119
申请日期
1929.12.28
申请人
INTERNATIONAL PROJECTOR CORPORATION
发明人
DINA AUGUSTO
分类号
G03B1/42
主分类号
G03B1/42
代理机构
代理人
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地址
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