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发明名称
Filmfortschalteinrichtung
摘要
申请公布号
DE674683(C)
申请公布日期
1939.04.19
申请号
DE1935K138642D
申请日期
1935.07.17
申请人
KALLE & CO. AKT.-GES.
发明人
VOIGT WILHELM
分类号
G03B1/22
主分类号
G03B1/22
代理机构
代理人
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地址
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