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发明名称
Box elbow
摘要
申请公布号
US1841523(A)
申请公布日期
1932.01.19
申请号
US19290386542
申请日期
1929.08.17
申请人
FRED C. FANTZ
发明人
CROWE MORTON B.;GETZEN JOHN E.
分类号
F16L45/00
主分类号
F16L45/00
代理机构
代理人
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