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经营范围
发明名称
NOISE REDUCTION DEVICE
摘要
申请公布号
JPS6460066(A)
申请公布日期
1989.03.07
申请号
JP19870215171
申请日期
1987.08.31
申请人
CANON INC
发明人
SASAKURA TAKAO
分类号
H04N5/21
主分类号
H04N5/21
代理机构
代理人
主权项
地址
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