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发明名称
Power converting unit and system
摘要
申请公布号
US2222214(A)
申请公布日期
1940.11.19
申请号
US19360082813
申请日期
1936.06.01
申请人
BEAMAN & LANGFORD
发明人
CARMICHAEL T. FRAZER
分类号
主分类号
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