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经营范围
发明名称
Improvements in or relating to pipe couplings
摘要
申请公布号
GB614876(A)
申请公布日期
1948.12.23
申请号
GB19460023682
申请日期
1946.08.09
申请人
JOHN RICHARD HEYGATE
发明人
分类号
F16L27/08
主分类号
F16L27/08
代理机构
代理人
主权项
地址
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