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经营范围
发明名称
VARIABLE SPEED DRIVE
摘要
申请公布号
CA460203(A)
申请公布日期
1949.10.11
申请号
CAD460203
申请日期
申请人
DON HEYER
发明人
DON HEYER
分类号
主分类号
代理机构
代理人
主权项
地址
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