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摘要
申请公布号
US2104926(A)
申请公布日期
1938.01.11
申请号
US19350014577
申请日期
1935.04.04
申请人
HAULTAIN HERBERT E T
发明人
HAULTAIN HERBERT E. T.
分类号
B03B5/48
主分类号
B03B5/48
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