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发明名称
Procédé de fabrication de bâtons de craie à écrire
摘要
申请公布号
FR907766(A)
申请公布日期
1946.03.21
申请号
FRD907766
申请日期
1944.05.06
申请人
发明人
CHRISTILLE MAURICE-MARIUS
分类号
B43K19/00
主分类号
B43K19/00
代理机构
代理人
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地址
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