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经营范围
发明名称
Improvements in or relating to electric buzzers, and particularly to buzzers employed in electric clocks
摘要
申请公布号
GB571082(A)
申请公布日期
1945.08.07
申请号
GB19430017844
申请日期
1943.10.28
申请人
S. SMITH & SONS (MOTOR ACCESSORIES), LIMITED;ERIC BEECROFT MOSS
发明人
分类号
G10K9/13
主分类号
G10K9/13
代理机构
代理人
主权项
地址
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