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发明名称
Chalk holder
摘要
申请公布号
US3332714(A)
申请公布日期
1967.07.25
申请号
US19660535599
申请日期
1966.03.18
申请人
SAISUKE SAKAI
发明人
SAKAI SAISUKE
分类号
B43K23/016
主分类号
B43K23/016
代理机构
代理人
主权项
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