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发明名称
METHOD OF FORMING CLAY SPHERES
摘要
申请公布号
CA621250(A)
申请公布日期
1961.05.30
申请号
CAD621250
申请日期
申请人
SELAS CORPORATION OF AMERICA
发明人
EMIL BLAHA
分类号
主分类号
代理机构
代理人
主权项
地址
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