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发明名称
PIEZOELECTRIC BUZZEER FOR WRIST WATCH
摘要
申请公布号
JPS5697398(A)
申请公布日期
1981.08.06
申请号
JP19800179955
申请日期
1980.12.19
申请人
RION CO
发明人
SUZUKI KAZUMA
分类号
H04R17/10;G10K9/12;G10K9/122
主分类号
H04R17/10
代理机构
代理人
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