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发明名称
Differential gear for driving spindles of wireless apparatus independently from the direction of rotation of the control knob
摘要
申请公布号
GB339389(A)
申请公布日期
1930.12.11
申请号
GB19290028924
申请日期
1929.09.24
申请人
HENRI DEFRANCE
发明人
分类号
H03J1/08
主分类号
H03J1/08
代理机构
代理人
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