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发明名称
Elevating bulk solids
摘要
申请公布号
GB2346164(A)
申请公布日期
2000.08.02
申请号
GB19990001973
申请日期
1999.02.01
申请人
JOHN RONALD * STEWART-SMITH
发明人
JOHN RONALD * STEWART-SMITH
分类号
E21B41/00;E21F17/00;(IPC1-7):E21F13/00
主分类号
E21B41/00
代理机构
代理人
主权项
地址
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