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发明名称
MANUFACTURE OF QUARTZ CRYSTAL ASSEMBLIES
摘要
申请公布号
CA469874(A)
申请公布日期
1950.12.05
申请号
CAD469874
申请日期
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
PRAFULLA KUMAR CHATTERJEA;STEPHEN JOHN POWERS
分类号
主分类号
代理机构
代理人
主权项
地址
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