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发明名称
Apparatus for filling ball point pens
摘要
申请公布号
US2816580(A)
申请公布日期
1957.12.17
申请号
US19550519071
申请日期
1955.06.30
申请人
WALDEN HENRY W
发明人
WALDEN HENRY W.
分类号
B43K7/04
主分类号
B43K7/04
代理机构
代理人
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