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经营范围
发明名称
Electrical accumulator
摘要
申请公布号
US2250847(A)
申请公布日期
1941.07.29
申请号
US19380207977
申请日期
1938.05.14
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
TORKELSON TORKEL E.
分类号
主分类号
代理机构
代理人
主权项
地址
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