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经营范围
发明名称
PIEZO-ELECTRIC UNIT MANUFACTURE
摘要
申请公布号
CA394524(A)
申请公布日期
1941.02.11
申请号
CAD394524
申请日期
申请人
THE BRUSH DEVELOPMENT COMPANY
发明人
CHARLES B. SAWYER;ALFRED L. W. WILLIAMS;CHARLES H. TOWER
分类号
主分类号
代理机构
代理人
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