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发明名称
Removable ground-penetrating stake
摘要
申请公布号
US3381763(A)
申请公布日期
1968.05.07
申请号
US19660567953
申请日期
1966.07.26
申请人
CARL G. MATSON
发明人
MATSON CARL G.
分类号
E04H17/18
主分类号
E04H17/18
代理机构
代理人
主权项
地址
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