A sub-level caving hydraulic support,申请号AU20030271396-传众专利搜索

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发明名称	A sub-level caving hydraulic support
摘要
申请公布号	AU2003271396(A1)	申请公布日期	2004.09.23
申请号	AU20030271396	申请日期	2003.12.30
申请人	YANKUANG GROUP CORPORATION	发明人	MINGSHENG ZENG;CHONGHONG ZHANG;XIHUA DENG;GUOFA WANG;ZHENG LI;FUCHANG HUANG;TAI JIN;DEYU YANG
分类号	E21D15/48;E21D23/04;(IPC1-7):E21D15/48	主分类号	E21D15/48
代理机构		代理人
主权项
地址

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