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经营范围
发明名称
WATER CONTROLLING BUILDING BLOCK
摘要
申请公布号
CA2064492(A1)
申请公布日期
1992.12.12
申请号
CA19922064492
申请日期
1992.03.31
申请人
NEWBLOCK CORPORATION
发明人
SAUVE, DENNIS L.
分类号
E04B1/64;E04B1/70;E04B2/14;(IPC1-7):E04C1/00
主分类号
E04B1/64
代理机构
代理人
主权项
地址
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