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发明名称
Closure
摘要
申请公布号
US2000795(A)
申请公布日期
1935.05.07
申请号
US19340752539
申请日期
1934.11.10
申请人
SWEENEY-BLOCK & CO., INC.
发明人
SWEENEY FRANK E.
分类号
A41H37/00
主分类号
A41H37/00
代理机构
代理人
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