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发明名称
Crayon à avancement de la mine par pression
摘要
申请公布号
FR993800(A)
申请公布日期
1951.11.07
申请号
FRD993800
申请日期
1949.08.26
申请人
KOH-I-NOOR L. & C. HARDTMUTH
发明人
VOTRUBA VOJTECH
分类号
B43K21/16
主分类号
B43K21/16
代理机构
代理人
主权项
地址
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