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经营范围
发明名称
MEANS FOR AERATING GRANULAR AND PULVERULENT MATERIALS
摘要
申请公布号
CA685219(A)
申请公布日期
1964.04.28
申请号
CAD685219
申请日期
申请人
CHAIN BELT COMPANY
发明人
ROBLEY W. EVANS
分类号
主分类号
代理机构
代理人
主权项
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