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经营范围
发明名称
Automatic diaphragm
摘要
申请公布号
US2091881(A)
申请公布日期
1937.08.31
申请号
US19350034967
申请日期
1935.08.06
申请人
ODON RISZDORFER
发明人
RISZDORFER ODON
分类号
G03B7/085
主分类号
G03B7/085
代理机构
代理人
主权项
地址
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