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公开(公告)号:WO2011069304A1
公开(公告)日:2011-06-16
申请号:PCT/CN2009/075533
申请日:2009-12-13
Applicant: 马立涛
Inventor: 马立涛
IPC: E04H14/00 , E04H6/18 , E04H1/04
CPC classification number: E04H1/04 , E04H6/188