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发明名称
besondere solche fuer Schmalfilm
摘要
申请公布号
DE693701(C)
申请公布日期
1940.07.17
申请号
DE193600ST496D
申请日期
1936.11.15
申请人
STEATIT-MAGNESIA AKT.-GES.
发明人
分类号
G03B1/42
主分类号
G03B1/42
代理机构
代理人
主权项
地址
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