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经营范围
发明名称
Pipe coupling
摘要
申请公布号
US2327571(A)
申请公布日期
1943.08.24
申请号
US19410391031
申请日期
1941.04.30
申请人
WALLIS JOHN W
发明人
WALLIS JOHN W.
分类号
F16L37/52
主分类号
F16L37/52
代理机构
代理人
主权项
地址
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