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经营范围
发明名称
Method and apparatus for reading books and the like
摘要
申请公布号
US1889575(A)
申请公布日期
1932.11.29
申请号
US19290380303
申请日期
1929.07.23
申请人
GEORGES SEBILLE
发明人
SEBILLE GEORGES
分类号
G03B21/11
主分类号
G03B21/11
代理机构
代理人
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地址
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