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经营范围
发明名称
An improvement in or relating to swings
摘要
申请公布号
GB679030(A)
申请公布日期
1952.09.10
申请号
GB19500000786
申请日期
1950.01.12
申请人
B. HIRST & SONS, LIMITED;CLEMENT HIRST
发明人
分类号
A63G9/12
主分类号
A63G9/12
代理机构
代理人
主权项
地址
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