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经营范围
发明名称
Cinematographic apparatus
摘要
申请公布号
US1905454(A)
申请公布日期
1933.04.25
申请号
US19300502725
申请日期
1930.12.16
申请人
MAX ENGELMANN
发明人
ENGELMANN MAX
分类号
G03B21/32
主分类号
G03B21/32
代理机构
代理人
主权项
地址
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