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发明名称
Writing instrument
摘要
申请公布号
US2559555(A)
申请公布日期
1951.07.03
申请号
US19490104311
申请日期
1949.07.12
申请人
NAHUM A. BERNSTEIN
发明人
ZEPELOVITCH NATHAN
分类号
B43K24/02;B43K25/02
主分类号
B43K24/02
代理机构
代理人
主权项
地址
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