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经营范围
发明名称
Insulated pipe
摘要
申请公布号
US2405021(A)
申请公布日期
1946.07.30
申请号
US19440539084
申请日期
1944.06.07
申请人
DURANT ALBERT A
发明人
DURANT ALBERT A.
分类号
F16L59/10
主分类号
F16L59/10
代理机构
代理人
主权项
地址
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