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发明名称
IMPROVEMENT IN EFFICIENCY OF HEAT COLLECTING SOURCES
摘要
申请公布号
GB9107627(D0)
申请公布日期
1991.05.29
申请号
GB19910007627
申请日期
1991.04.10
申请人
HARWOOD, HUGH D
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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