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发明名称
Perfectionnements aux procédés de fabrication de mines de crayons ou objets analogues par éjection
摘要
申请公布号
FR767299(A)
申请公布日期
1934.07.13
申请号
FRD767299
申请日期
1934.01.19
申请人
发明人
SMITH
分类号
B43K19/18
主分类号
B43K19/18
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代理人
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