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发明名称
An improved electrical pocket-lamp pencil
摘要
申请公布号
GB340966(A)
申请公布日期
1931.01.01
申请号
GB19290017518
申请日期
1929.06.07
申请人
JULIAN WAGNER;OSKAR SCHOETZ
发明人
分类号
B43K29/10
主分类号
B43K29/10
代理机构
代理人
主权项
地址
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