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发明名称
Appareil pour la projection de dessins, textes et analogues pendant leur exécution
摘要
申请公布号
FR822558(A)
申请公布日期
1938.01.04
申请号
FRD822558
申请日期
1936.09.08
申请人
发明人
MARWEDE HANS, HEINRICH
分类号
G03B21/132
主分类号
G03B21/132
代理机构
代理人
主权项
地址
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