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经营范围
发明名称
Tube coupling
摘要
申请公布号
US2349081(A)
申请公布日期
1944.05.16
申请号
US19430473445
申请日期
1943.01.25
申请人
DOUGLASS JAMES L
发明人
DOUGLASS JAMES L.
分类号
F16L19/04
主分类号
F16L19/04
代理机构
代理人
主权项
地址
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