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发明名称
Means for relieving pressure on top rolls
摘要
申请公布号
US1991873(A)
申请公布日期
1935.02.19
申请号
US19330697465
申请日期
1933.11.10
申请人
STUBBS JAMES C
发明人
STUBBS JAMES C.
分类号
D01H5/48
主分类号
D01H5/48
代理机构
代理人
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