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经营范围
发明名称
Apparatus for rolling balls
摘要
申请公布号
GB351234(A)
申请公布日期
1931.06.25
申请号
GB19300018353
申请日期
1930.06.16
申请人
JOHANN MAIER
发明人
分类号
B21H1/14
主分类号
B21H1/14
代理机构
代理人
主权项
地址
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