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发明名称
Carbon holder for writing machines
摘要
申请公布号
US2553818(A)
申请公布日期
1951.05.22
申请号
US19480045377
申请日期
1948.08.20
申请人
STANDARD MANIFOLD COMPANY, INC.
发明人
FLEISCHMANN LESTER K.
分类号
B41L1/16
主分类号
B41L1/16
代理机构
代理人
主权项
地址
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