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发明名称
X-RAY TUBE
摘要
申请公布号
CA323893(A)
申请公布日期
1932.07.05
申请号
CAD323893
申请日期
申请人
THE CANADIAN WESTINGHOUSE COMPANY
发明人
LOUIS FREDERICK EHRKE
分类号
主分类号
代理机构
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