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经营范围
发明名称
GASEOUS TUBES AND CIRCUITS
摘要
申请公布号
CA469729(A)
申请公布日期
1950.11.28
申请号
CAD469729
申请日期
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
CLYDE J. FITCH;ROBERT N. EICHORN
分类号
主分类号
代理机构
代理人
主权项
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