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发明名称
Monogram
摘要
申请公布号
US2648923(A)
申请公布日期
1953.08.18
申请号
US19490134883
申请日期
1949.12.24
申请人
WALTER BRENT
发明人
BRENT WALTER
分类号
G09F7/14
主分类号
G09F7/14
代理机构
代理人
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地址
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