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经营范围
发明名称
FOCUSED ELECTROMECHANICAL DEVICE
摘要
申请公布号
CA501617(A)
申请公布日期
1954.04.20
申请号
CAD501617
申请日期
申请人
CLEVITE CORPORATION
发明人
ALFRED L. W. WILLIAMS
分类号
主分类号
代理机构
代理人
主权项
地址
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