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发明名称
METHOD OF SEALING THE ENVELOPE OF A VACUUM TUBE
摘要
申请公布号
CA499716(A)
申请公布日期
1954.02.02
申请号
CAD499716
申请日期
申请人
MACHLETT LABORATORIES
发明人
GEORGE J. AGULE
分类号
主分类号
代理机构
代理人
主权项
地址
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