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发明名称
Apparatus for use in teaching physical geography and the like
摘要
申请公布号
US1986576(A)
申请公布日期
1935.01.01
申请号
US19340705447
申请日期
1934.01.05
申请人
GIDLEY HOWDEN THOMAS
发明人
HOWDEN THOMAS GIDLEY
分类号
G09B27/08
主分类号
G09B27/08
代理机构
代理人
主权项
地址
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