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发明名称
PORTABLE CYLINDER LEAKAGE TESTER
摘要
申请公布号
GB9023589(D0)
申请公布日期
1990.12.12
申请号
GB19900023589
申请日期
1990.10.30
申请人
DANGERFIELD, TREVOR
发明人
分类号
主分类号
代理机构
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