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发明名称
Mount tray
摘要
申请公布号
US2669774(A)
申请公布日期
1954.02.23
申请号
US19490119642
申请日期
1949.10.05
申请人
SYLVANIA ELECTRIC PRODUCTS INC.
发明人
MITCHELL CHARLES R.
分类号
H01J9/46
主分类号
H01J9/46
代理机构
代理人
主权项
地址
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