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发明名称
Carbon supply and control for writing machines
摘要
申请公布号
US2339279(A)
申请公布日期
1944.01.18
申请号
US19400364507
申请日期
1940.11.06
申请人
GILMAN FANFOLD CORPORATION
发明人
MABON CARL R.
分类号
B41J17/00
主分类号
B41J17/00
代理机构
代理人
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地址
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