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发明名称
Improvements in velocipede dynamo lamps
摘要
申请公布号
GB490261(A)
申请公布日期
1938.08.11
申请号
GB19370013701
申请日期
1937.05.14
申请人
RICHARD HERBST
发明人
分类号
B62J6/06
主分类号
B62J6/06
代理机构
代理人
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