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发明名称
PHOTOWIDERSTAND.
摘要
申请公布号
DE1735732(U)
申请公布日期
1956.12.13
申请号
DE195600P0490U
申请日期
1956.09.22
申请人
PHYSIKALISCH-TECHNISCHE WERKSTAETTEN PROF. DR.-ING. WALTER HEIMANN
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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