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经营范围
发明名称
Dispositif piézoélectrique.
摘要
申请公布号
CH264443(A)
申请公布日期
1949.10.15
申请号
CHD264443
申请日期
1947.05.21
申请人
TIBBETTS LABORATORIES, INC.
发明人
INC. TIBBETTS LABORATORIES,
分类号
H04R17/00;H04R17/04
主分类号
H04R17/00
代理机构
代理人
主权项
地址
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