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发明名称
ELECTRICALLY DRIVEN CLOCK
摘要
申请公布号
CA335457(A)
申请公布日期
1933.09.05
申请号
CAD335457
申请日期
申请人
S. SMITH AND SONS (MOTOR ACCESSORIES) LIMITED
发明人
ERNEST HOWARD STEVENS
分类号
主分类号
代理机构
代理人
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