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发明名称
Method of making a seal for discharge devices
摘要
申请公布号
US2215644(A)
申请公布日期
1940.09.24
申请号
US19380242550
申请日期
1938.11.26
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
JR. ROBERT FRED HAYS,
分类号
H01J5/24
主分类号
H01J5/24
代理机构
代理人
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地址
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