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发明名称
Improvements in or relating to balls and the production thereof
摘要
申请公布号
GB717004(A)
申请公布日期
1954.10.20
申请号
GB19520010335
申请日期
1952.04.24
申请人
WILHELM LAMMLE;PAUL STEIGER
发明人
分类号
A63B41/08
主分类号
A63B41/08
代理机构
代理人
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