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发明名称
DAFT TUBE MANHOLE PASSAGE OF HYDRAULIC MACHINERY
摘要
<p>PURPOSE:A draft tube-manhole passage of a hydraulic machinery useful to built up a scaffolding in a draft tube in the case of checking impellers of a hydraulic machinery such as a big vertical hydraulic turbine.</p>
申请公布号
JPS52100037(A)
申请公布日期
1977.08.22
申请号
JP19760015905
申请日期
1976.02.18
申请人
发明人
分类号
F03B11/00;E04G1/36
主分类号
F03B11/00
代理机构
代理人
主权项
地址
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