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发明名称
TELESCOPIC ASBESTOS-CEMENT TUNNEL FOR GRAVITY CONDUITS
摘要
申请公布号
HU904638(D0)
申请公布日期
1991.01.28
申请号
HU19900004638
申请日期
1990.07.26
申请人
NAGY,LAJOS,HU
发明人
NAGY,LAJOS,HU
分类号
E03F5/04
主分类号
E03F5/04
代理机构
代理人
主权项
地址
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