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发明名称
BOUNDARY BARRIER
摘要
申请公布号
US3459280(A)
申请公布日期
1969.08.05
申请号
USD3459280
申请日期
1968.01.08
申请人
WILLIAM K. GRIMM
发明人
WILLIAM K. GRIMM
分类号
E01F13/00;(IPC1-7):F16D63/00;B60T3/00;E01C9/10
主分类号
E01F13/00
代理机构
代理人
主权项
地址
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