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发明名称
HYDRAULICSYSTEM FOR SEFETYING A SELF-ADVANCING ROOF SUPPORT UNIT
摘要
申请公布号
PL161359(B1)
申请公布日期
1993.06.30
申请号
PL19900283531
申请日期
1990.01.29
申请人
发明人
分类号
F15B20/00;(IPC1-7):F15B20/00
主分类号
F15B20/00
代理机构
代理人
主权项
地址
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AROMA-RETAINING COMPOSITION
