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发明名称
Transition pipe couplings
摘要
申请公布号
GB1028946(A)
申请公布日期
1966.05.11
申请号
GB19650006506
申请日期
1965.02.15
申请人
HYDROCARBON RESEARCH, INC.
发明人
分类号
F16L13/007
主分类号
F16L13/007
代理机构
代理人
主权项
地址
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