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发明名称
Procédé de production d'ultra-sons
摘要
申请公布号
CH325164(A)
申请公布日期
1957.10.31
申请号
CHD325164
申请日期
1955.06.20
申请人
ULTRASONIC S. A.
发明人
LEGRAND,ROGER
分类号
B06B1/02
主分类号
B06B1/02
代理机构
代理人
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地址
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