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发明名称
HELIX STRUCTURE AND METHOD OF MANUFACTURE
摘要
申请公布号
CA577668(A)
申请公布日期
1959.06.16
申请号
CAD577668
申请日期
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
JACK A. MORTON
分类号
主分类号
代理机构
代理人
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