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发明名称
BUOYANCY/DISPLACER GAS FLOW METER PROVER
摘要
申请公布号
GB9110988(D0)
申请公布日期
1991.07.10
申请号
GB19910010988
申请日期
1991.05.20
申请人
KITCHENER, RENATO B
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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