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经营范围
发明名称
ANCHOR
摘要
21027-323 A twin shank anchor presenting a tunnel passage for gliding soil flow in an anti-lift attitude of its fluke on a downward penetration course to a substantial burying depth for optimum holding power.
申请公布号
CA1278725(C)
申请公布日期
1991.01.08
申请号
CA19860518939
申请日期
1986.09.24
申请人
VAN DEN HAAK, ROB
发明人
VAN DEN HAAK, ROB
分类号
B63B21/22;B63B21/30
主分类号
B63B21/22
代理机构
代理人
主权项
地址
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