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发明名称
IMPROVEMENTS IN MOUNTINGS FOR PHOTOGRAPHIC TRANSPARENCIES
摘要
申请公布号
GB1256230(A)
申请公布日期
1971.12.08
申请号
GB19680035983
申请日期
1968.05.28
申请人
BERTRAM EDWARD CHARLES GREEN
发明人
BERTRAM EDWARD CHARLES GREEN
分类号
G03B21/64
主分类号
G03B21/64
代理机构
代理人
主权项
地址
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