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发明名称
IMPROVED CASSETTE FOR STORING AND PROJECTING A FILM
摘要
申请公布号
GB1275294(A)
申请公布日期
1972.05.24
申请号
GB19690039534
申请日期
1969.08.07
申请人
ERNST GILL
发明人
ERNST GILL
分类号
G03B21/32
主分类号
G03B21/32
代理机构
代理人
主权项
地址
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