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发明名称
Crayon composé d'une mine entourée d'une feuille de bois
摘要
申请公布号
FR686135(A)
申请公布日期
1930.07.22
申请号
FRD686135
申请日期
1929.12.05
申请人
发明人
FORSSMAN WILLEHEAD HENRIK
分类号
B43K19/16
主分类号
B43K19/16
代理机构
代理人
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地址
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