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发明名称
MEGAPHONE WITH WHISTLE
摘要
申请公布号
JPS62118396(A)
申请公布日期
1987.05.29
申请号
JP19850258303
申请日期
1985.11.18
申请人
MATO JIRO
发明人
MATO JIRO
分类号
G10K5/00;G10K11/08
主分类号
G10K5/00
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