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发明名称
CODE-TEACHING APPARATUS
摘要
申请公布号
CA602812(A)
申请公布日期
1960.08.02
申请号
CAD602812
申请日期
申请人
AEROVOX CORPORATION
发明人
JOHN K. LEVIN;WILLIS G. STEWART
分类号
主分类号
代理机构
代理人
主权项
地址
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