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发明名称
SHIELD TYPE
摘要
申请公布号
JPS5664087(A)
申请公布日期
1981.06.01
申请号
JP19800145577
申请日期
1980.10.17
申请人
EICKHOFF MASCHF EISEN
发明人
RORUFU KURAUZE
分类号
E21C27/06;E21C25/10;E21C25/14;E21C31/10
主分类号
E21C27/06
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