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发明名称
DEVICE FOR HEIGHT ADJUSTMENT OF COAL PLOUGH
摘要
申请公布号
SU1284462(A3)
申请公布日期
1987.01.15
申请号
SU19853841604
申请日期
1985.01.22
申请人
HALBACH & BRAUN IND ANLAGEN
发明人
ERNST BRAUN,DE;GERT BRAUN,DE
分类号
E21C27/32;E21C35/12
主分类号
E21C27/32
代理机构
代理人
主权项
地址
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