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发明名称
Composition and method for cleaning and phosphating metal
摘要
申请公布号
US2857298(A)
申请公布日期
1958.10.21
申请号
US19570684286
申请日期
1957.09.16
申请人
SMITH CHESTER W
发明人
SMITH CHESTER W.
分类号
C23C22/08
主分类号
C23C22/08
代理机构
代理人
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