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发明名称
HELICAL EARTH
摘要
申请公布号
US3548069(A)
申请公布日期
1970.12.15
申请号
USD3548069
申请日期
1969.04.15
申请人
HIKOITSU WATANABE;SANJI GENMA
发明人
HIKOITSU WATANABE;SANJI GENMA
分类号
H01R4/66;H02G13/00;(IPC1-7):H01R3/06
主分类号
H01R4/66
代理机构
代理人
主权项
地址
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