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发明名称
Nested conduits
摘要
申请公布号
US2872035(A)
申请公布日期
1959.02.03
申请号
US19550524203
申请日期
1955.07.25
申请人
RICHARD TATSCH
发明人
TATSCH RICHARD
分类号
F16L9/22
主分类号
F16L9/22
代理机构
代理人
主权项
地址
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