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发明名称
SIMPLE METHOD AND DEVICE FOR PREVENTING NOISES
摘要
申请公布号
JPS5374401(A)
申请公布日期
1978.07.01
申请号
JP19760150534
申请日期
1976.12.14
申请人
YAMADA TSUUSHIYOU KK
发明人
YAMADA SHIYOUKICHI
分类号
G10K11/16;E02D13/00;E02F3/00;E21B12/06;G10K11/02
主分类号
G10K11/16
代理机构
代理人
主权项
地址
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