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发明名称
Improvements in constructional toys
摘要
申请公布号
GB628143(A)
申请公布日期
1949.08.23
申请号
GB19470001158
申请日期
1947.01.13
申请人
GEORGE BERNARD SIMMONS
发明人
分类号
A63H33/04
主分类号
A63H33/04
代理机构
代理人
主权项
地址
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