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发明名称
Improvements in or relating to pipe couplings
摘要
申请公布号
GB725557(A)
申请公布日期
1955.03.09
申请号
GB19530000539
申请日期
1953.01.07
申请人
HANS HATSCHEK;FRITZ HATSCHEK;HANS CZERWENKA
发明人
分类号
F16L17/025
主分类号
F16L17/025
代理机构
代理人
主权项
地址
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