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发明名称
Pencil
摘要
申请公布号
US2108441(A)
申请公布日期
1938.02.15
申请号
US19360103071
申请日期
1936.09.29
申请人
HANS MAUCHER
发明人
MAUCHER HANS
分类号
B43K24/16
主分类号
B43K24/16
代理机构
代理人
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地址
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