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发明名称
Klappbildwand
摘要
申请公布号
DE936302(C)
申请公布日期
1955.12.07
申请号
DE1952ST04767
申请日期
1952.04.26
申请人
STEATIT-MAGNESIA AKTIENGESELLSCHAFT
发明人
MAYER ERHARDT
分类号
G03B21/58
主分类号
G03B21/58
代理机构
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