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发明名称
Pencil
摘要
申请公布号
US1827619(A)
申请公布日期
1931.10.13
申请号
US19300455391
申请日期
1930.05.24
申请人
SCHROEDER
发明人
SCHROEDER FRED;RADDATZ ALBERT
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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