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经营范围
发明名称
Metal finish
摘要
申请公布号
US2253489(A)
申请公布日期
1941.08.19
申请号
US19370143808
申请日期
1937.05.20
申请人
SMITH RAYMOND L
发明人
SMITH RAYMOND L.
分类号
E04F13/08
主分类号
E04F13/08
代理机构
代理人
主权项
地址
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