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经营范围
发明名称
Adjustable speed drive
摘要
申请公布号
US2281518(A)
申请公布日期
1942.04.28
申请号
US19380238657
申请日期
1938.11.03
申请人
LANDIS TOOL COMPANY
发明人
JR. ROBERT S. ELBERTY,
分类号
B23B19/00;H02P7/34
主分类号
B23B19/00
代理机构
代理人
主权项
地址
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