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发明名称
Improvements in hydraulic tracing valve units
摘要
申请公布号
GB829218(A)
申请公布日期
1960.03.02
申请号
GB19570004759
申请日期
1957.02.12
申请人
HAYES ENGINEERS (LEEDS) LIMITED
发明人
WOODRUFF JOSEPH BURTON
分类号
B23Q35/36
主分类号
B23Q35/36
代理机构
代理人
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