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发明名称
Beam extractor
摘要
申请公布号
US2626351(A)
申请公布日期
1953.01.20
申请号
US19480044649
申请日期
1948.08.17
申请人
POWELL WILSON M
发明人
POWELL WILSON M.
分类号
H05H7/10
主分类号
H05H7/10
代理机构
代理人
主权项
地址
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