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发明名称
X-ray cathode shield
摘要
申请公布号
US1920606(A)
申请公布日期
1933.08.01
申请号
US19310578243
申请日期
1931.12.01
申请人
WESTINGHOUSE LAMP COMPANY
发明人
STEWART NELSON H.
分类号
H01J35/16
主分类号
H01J35/16
代理机构
代理人
主权项
地址
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