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发明名称
Method and means for marking surfaces
摘要
申请公布号
US1895045(A)
申请公布日期
1933.01.24
申请号
US19310551513
申请日期
1931.07.17
申请人
MOORE JAMES L
发明人
MOORE JAMES L.
分类号
E01C23/20
主分类号
E01C23/20
代理机构
代理人
主权项
地址
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