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发明名称
Kamera mit auswechselbaren Objektiven verschiedener Brennweite
摘要
申请公布号
DE972438(C)
申请公布日期
1959.07.23
申请号
DE1952B023183
申请日期
1952.12.03
申请人
ERNST;BERTRAM WILHELM
发明人
BERTRAM WILHELM;ZUMSTEIN FRITZ
分类号
G03B13/20
主分类号
G03B13/20
代理机构
代理人
主权项
地址
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