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发明名称
Pencil
摘要
申请公布号
US2170867(A)
申请公布日期
1939.08.29
申请号
US19390274358
申请日期
1939.05.18
申请人
JOSEPH DIXON CRUCIBLE COMPANY
发明人
MILLER KAY
分类号
B43K21/22
主分类号
B43K21/22
代理机构
代理人
主权项
地址
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