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发明名称
Lead-change-pencil provided with slotless outer jacket
摘要
申请公布号
US2849983(A)
申请公布日期
1958.09.02
申请号
US19550511722
申请日期
1955.05.27
申请人
ADOLF WALDMANN
发明人
GOSSWEILER OSKAR;GOSSWEILER MANFRED
分类号
B43K24/14
主分类号
B43K24/14
代理机构
代理人
主权项
地址
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