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发明名称
Electrical converting apparatus
摘要
申请公布号
US2635222(A)
申请公布日期
1953.04.14
申请号
US19510232099
申请日期
1951.06.18
申请人
GRANGER JR FRED P
发明人
JR. FRED P. GRANGER,
分类号
H02M7/51
主分类号
H02M7/51
代理机构
代理人
主权项
地址
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