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发明名称
EXPANDING WEDGE
摘要
申请公布号
PL290298(A1)
申请公布日期
1992.11.30
申请号
PL19910290298
申请日期
1991.05.16
申请人
EJSYMONT HENRYK
发明人
EJSYMONT HENRYK
分类号
B25G3/28;(IPC1-7):B25G3/28
主分类号
B25G3/28
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代理人
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地址
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