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发明名称
Photography
摘要
申请公布号
US2000470(A)
申请公布日期
1935.05.07
申请号
US19310516029
申请日期
1931.02.16
申请人
MILLER MAX O
发明人
MILLER MAX O.
分类号
G03B19/18
主分类号
G03B19/18
代理机构
代理人
主权项
地址
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