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发明名称
FILM HOLDER FOR A PROJECTION APPARATUS
摘要
申请公布号
US3542471(A)
申请公布日期
1970.11.24
申请号
USD3542471
申请日期
1967.03.27
申请人
MEOPTA NARODNI PODNIK
发明人
LADISLAV DUBNY
分类号
G03B27/62;(IPC1-7):G03B27/62
主分类号
G03B27/62
代理机构
代理人
主权项
地址
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