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经营范围
发明名称
Perfectionnements apportés aux appareils cinématographiques à objectifs mobiles
摘要
申请公布号
FR769891(A)
申请公布日期
1934.09.03
申请号
FRD769891
申请日期
1934.03.09
申请人
发明人
JOHN WESLEY ERNEST
分类号
G03B41/08
主分类号
G03B41/08
代理机构
代理人
主权项
地址
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