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发明名称
Polish
摘要
申请公布号
US2136402(A)
申请公布日期
1938.11.15
申请号
US19340738297
申请日期
1934.08.03
申请人
J. A. TUMBLER LABORATORIES
发明人
TUMBLER JOSEPH A.
分类号
C11D7/60
主分类号
C11D7/60
代理机构
代理人
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