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发明名称
Copy character holder
摘要
申请公布号
US2282473(A)
申请公布日期
1942.05.12
申请号
US19400365684
申请日期
1940.11.14
申请人
H. P. PREIS ENGRAVING MACHINE CO.
发明人
HOFFMANN JACOB A.
分类号
B44B3/06
主分类号
B44B3/06
代理机构
代理人
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地址
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