Yieldable load support prop,申请号ZA20090001409-传众专利搜索

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发明名称	Yieldable load support prop
摘要
申请公布号	ZA200901409(B)	申请公布日期	2010.03.31
申请号	ZA20090001409	申请日期	2009.02.27
申请人	FROST, TREVOR CHARLES	发明人	FROST, TREVOR CHARLES
分类号	E21D	主分类号	E21D
代理机构		代理人
主权项
地址

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