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发明名称
Variable speed drive
摘要
申请公布号
US2302064(A)
申请公布日期
1942.11.17
申请号
US19400346467
申请日期
1940.07.20
申请人
SAMUEL M. LANGSTON CO.
发明人
SIEG KARL
分类号
F16H35/02
主分类号
F16H35/02
代理机构
代理人
主权项
地址
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