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发明名称
Resilient supporting shank
摘要
申请公布号
US2976000(A)
申请公布日期
1961.03.21
申请号
US19600010691
申请日期
1960.02.24
申请人
GUNDERSON RALPH R
发明人
GUNDERSON RALPH R.
分类号
E01F9/017
主分类号
E01F9/017
代理机构
代理人
主权项
地址
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