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发明名称
Gate and lens structure for moving picture film
摘要
申请公布号
US2022366(A)
申请公布日期
1935.11.26
申请号
US19340714569
申请日期
1934.03.08
申请人
INTERNATIONAL PROJECTOR CORPORATION
发明人
BOECKING EWALD
分类号
G03B1/56;G03B19/18
主分类号
G03B1/56
代理机构
代理人
主权项
地址
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