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经营范围
发明名称
Betrachtungsvorrichtung mit Projektionseinrichtung
摘要
申请公布号
DE1123842(B)
申请公布日期
1962.02.15
申请号
DE1958V015041
申请日期
1958.09.15
申请人
KARL FRIEDRICH FRITZ VOLLMER
发明人
VOLLMER KARL FRIEDRICH FRITZ
分类号
G03B21/00
主分类号
G03B21/00
代理机构
代理人
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