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发明名称
Photographic camera
摘要
申请公布号
US1951896(A)
申请公布日期
1934.03.20
申请号
US19300435390
申请日期
1930.03.13
申请人
WILHELM BERMPOHL
发明人
BERMPOHL WILHELM
分类号
G03B33/00
主分类号
G03B33/00
代理机构
代理人
主权项
地址
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