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发明名称
Lettering guide
摘要
申请公布号
US2806299(A)
申请公布日期
1957.09.17
申请号
US19510229815
申请日期
1951.06.04
申请人
DUBAS HENRY F
发明人
DUBAS HENRY F.
分类号
B43L13/00;G09B11/04
主分类号
B43L13/00
代理机构
代理人
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地址
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