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经营范围
发明名称
Improvements in or relating to vacuum relief valves
摘要
申请公布号
GB696808(A)
申请公布日期
1953.09.09
申请号
GB19520012207
申请日期
1949.10.12
申请人
THE GARRETT CORPORATION
发明人
分类号
B64D13/02;B64D13/04;G05D16/16
主分类号
B64D13/02
代理机构
代理人
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地址
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