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发明名称
PIEZO-ELECTRIC THICKNESS VIBRATOR
摘要
申请公布号
CA909346(A)
申请公布日期
1972.09.05
申请号
CAD909346
申请日期
申请人
N.V. PHILIPS GLOEILAMPENFABRIEKEN
发明人
MARTIJN DE JONG;WILLEM R. DE WILD
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主分类号
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