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发明名称
An improvement to puzzles generally known as jigsaw puzzles
摘要
申请公布号
GB699912(A)
申请公布日期
1953.11.18
申请号
GB19500026747
申请日期
1950.11.02
申请人
ARTHUR WILFRED JAMES ROSSER
发明人
分类号
A63F9/10
主分类号
A63F9/10
代理机构
代理人
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