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经营范围
发明名称
SIGNAL DELAY DEVICE
摘要
申请公布号
CA511251(A)
申请公布日期
1955.03.22
申请号
CAD511251
申请日期
申请人
PHILCO CORPORATION
发明人
ARTHUR H. MANKIN
分类号
主分类号
代理机构
代理人
主权项
地址
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