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发明名称
Improvements in waste valves for hydraulic rams and similar apparatus
摘要
申请公布号
GB521783(A)
申请公布日期
1940.05.30
申请号
GB19390005037
申请日期
1939.02.16
申请人
JOHN BLAKE LIMITED;FREDERICK WARREN
发明人
分类号
F04F7/02
主分类号
F04F7/02
代理机构
代理人
主权项
地址
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