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发明名称
Improvements in constructional toys in the form of moulds
摘要
申请公布号
GB678517(A)
申请公布日期
1952.09.03
申请号
GB19490022171
申请日期
1949.08.26
申请人
FRANK ALAN MIDDLETON
发明人
分类号
A63H33/00;B28B7/34
主分类号
A63H33/00
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代理人
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