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发明名称
SPIRAL LOOP SYSTEM
摘要
申请公布号
GB8306509(D0)
申请公布日期
1983.04.13
申请号
GB19830006509
申请日期
1983.03.09
申请人
WHITEHOUSE, R C N
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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