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经营范围
发明名称
Power driving means
摘要
申请公布号
US2221639(A)
申请公布日期
1940.11.12
申请号
US19380239634
申请日期
1938.11.09
申请人
THEODORE JOHNSON;JOHNSON ROBERT O;SEYFRIED ARTHUR W
发明人
JOHNSON THEODORE;JOHNSON ROBERT O.;SEYFRIED ARTHUR W.
分类号
H02K7/14
主分类号
H02K7/14
代理机构
代理人
主权项
地址
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