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发明名称
Solenoid design
摘要
申请公布号
US2780755(A)
申请公布日期
1957.02.05
申请号
US19530371135
申请日期
1953.07.29
申请人
LUDWIG WALTER D
发明人
LUDWIG WALTER D.
分类号
H01F27/245;H01F27/26;H01F27/33
主分类号
H01F27/245
代理机构
代理人
主权项
地址
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