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发明名称
Impulse track circuit
摘要
申请公布号
US2187225(A)
申请公布日期
1940.01.16
申请号
US19380218386
申请日期
1938.07.09
申请人
DOWER DAVID W;CLARK AUGUSTUS W
发明人
DOWER DAVID W.;CLARK AUGUSTUS W.
分类号
B61L1/18
主分类号
B61L1/18
代理机构
代理人
主权项
地址
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