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发明名称
摘要
申请公布号
DE8710684(U1)
申请公布日期
1987.11.19
申请号
DE19870010684U
申请日期
1987.08.05
申请人
NIEDERHOLZ, JOHANNES, 4132 KAMP-LINTFORT, DE
发明人
分类号
E21F13/00;E21F17/06;(IPC1-7):E05F11/54;E21F13/08
主分类号
E21F13/00
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