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发明名称
Ribbon spool construction
摘要
申请公布号
US2232461(A)
申请公布日期
1941.02.18
申请号
US19380248545
申请日期
1938.12.30
申请人
KUCKHOFF JOHN C
发明人
KUCKHOFF JOHN C.
分类号
B41J33/00
主分类号
B41J33/00
代理机构
代理人
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