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发明名称
Pencil holder
摘要
申请公布号
US2455019(A)
申请公布日期
1948.11.30
申请号
US19440569002
申请日期
1944.12.20
申请人
MCNEILL ROBERT M
发明人
MCNEILL ROBERT M.
分类号
B43K21/22;B43K23/00
主分类号
B43K21/22
代理机构
代理人
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地址
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