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发明名称
Improvements in ball and socket joints for pipes
摘要
申请公布号
GB403589(A)
申请公布日期
1933.12.28
申请号
GB19330020839
申请日期
1933.07.24
申请人
E. OTTO DIETRICH ROHRLEITUNGSBAU, A. G.
发明人
分类号
F16L27/053;F16L27/06
主分类号
F16L27/053
代理机构
代理人
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地址
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