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发明名称
ELECTRIC CIRCUIT COMPONENTS AND METHOD OF PREPARING SAME
摘要
申请公布号
CA543223(A)
申请公布日期
1957.07.09
申请号
CAD543223
申请日期
申请人
BECK'S INC.
发明人
JOHN T. BECK
分类号
主分类号
代理机构
代理人
主权项
地址
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