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发明名称
Piezoelectric motor
摘要
申请公布号
US2439499(A)
申请公布日期
1948.04.13
申请号
US19420455416
申请日期
1942.08.20
申请人
THE BRUSH DEVELOPMENT COMPANY
发明人
WILLIAMS ALFRED L. W.;BROWN WALTER J.
分类号
G04C3/12;H01L41/09;H02N2/16
主分类号
G04C3/12
代理机构
代理人
主权项
地址
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