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发明名称
Procédé et dispositif pour la mise en vibration de surfaces de grande étendue
摘要
申请公布号
FR1004577(A)
申请公布日期
1952.03.31
申请号
FRD1004577
申请日期
1947.05.10
申请人
发明人
KEYSER CHARLES DE
分类号
B28B1/087
主分类号
B28B1/087
代理机构
代理人
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