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发明名称
Pencil
摘要
申请公布号
US2005485(A)
申请公布日期
1935.06.18
申请号
US19300478827
申请日期
1930.08.30
申请人
WELLS ALBERT C
发明人
WELLS ALBERT C.
分类号
B43K21/08
主分类号
B43K21/08
代理机构
代理人
主权项
地址
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