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经营范围
发明名称
Optik fuer Tonfilmgeraete
摘要
申请公布号
DE643570(C)
申请公布日期
1937.04.12
申请号
DE1933Z021067D
申请日期
1933.06.20
申请人
FIRMA CARL ZEISS
发明人
分类号
G11B7/00
主分类号
G11B7/00
代理机构
代理人
主权项
地址
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