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发明名称
Refillable pencil
摘要
申请公布号
US2038248(A)
申请公布日期
1936.04.21
申请号
US19350049587
申请日期
1935.11.13
申请人
FIRM OF KOH-I-NOOR BLEISTIFTFABRIK L. & C.
发明人
STEUER STEFAN
分类号
B43K21/20
主分类号
B43K21/20
代理机构
代理人
主权项
地址
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